Commit Graph

1565 Commits

Author SHA1 Message Date
Pavankumar Kondeti
7cc02920f7 sched/fair: Add bias towards previous CPU for high wakeup rate tasks
Skip the CPU selection algorithm for high wakeup rate tasks and select
the previous CPU if it is idle.

Change-Id: I99493c8c37e091c79723ee22a5230fbb6f4e33b9
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2018-04-17 22:41:40 +05:30
Pavankumar Kondeti
4d5dd1ca73 sched: Fix incorrect usage of SCHED_CPUFREQ_INTERCLUSTER_MIG flag
Mark the source/destination CPUs correctly for inter cluster
migration.

Change-Id: I771b9357d20cb0270465abd594fb94bb3669c936
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2018-04-05 08:26:43 +05:30
Maulik Shah
fe64686f8d cpuidle: lpm-levels: Remove sched_set_cpu_cstate calls
Scheduler no more need to know current c-state of cpu.
Remove unused calls to set c-state.

Change-Id: I2ddb3676527a20e00c0dfc192751a86e14eb0965
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
2018-03-05 01:21:12 -08:00
Pavankumar Kondeti
4e13d11267 sched: improve the scheduler
This change is for general scheduler improvement.

Change-Id: Ice980dde340bff8362b4f2adc679423d8f54e8e4
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2018-02-12 06:53:58 +05:30
Michal Hocko
065e76dd01 mm, oom_reaper: fix memory corruption
David Rientjes has reported the following memory corruption while the
oom reaper tries to unmap the victims address space

  BUG: Bad page map in process oom_reaper  pte:6353826300000000 pmd:00000000
  addr:00007f50cab1d000 vm_flags:08100073 anon_vma:ffff9eea335603f0 mapping:          (null) index:7f50cab1d
  file:          (null) fault:          (null) mmap:          (null) readpage:          (null)
  CPU: 2 PID: 1001 Comm: oom_reaper
  Call Trace:
     unmap_page_range+0x1068/0x1130
     __oom_reap_task_mm+0xd5/0x16b
     oom_reaper+0xff/0x14c
     kthread+0xc1/0xe0

Tetsuo Handa has noticed that the synchronization inside exit_mmap is
insufficient.  We only synchronize with the oom reaper if
tsk_is_oom_victim which is not true if the final __mmput is called from
a different context than the oom victim exit path.  This can trivially
happen from context of any task which has grabbed mm reference (e.g.  to
read /proc/<pid>/ file which requires mm etc.).

The race would look like this

  oom_reaper		oom_victim		task
						mmget_not_zero
			do_exit
			  mmput
  __oom_reap_task_mm				mmput
  						  __mmput
						    exit_mmap
						      remove_vma
    unmap_page_range

Fix this issue by providing a new mm_is_oom_victim() helper which
operates on the mm struct rather than a task.  Any context which
operates on a remote mm struct should use this helper in place of
tsk_is_oom_victim.  The flag is set in mark_oom_victim and never cleared
so it is stable in the exit_mmap path.

Debugged by Tetsuo Handa.

Change-Id: Ia07154534e7a729333af2507f7a632f7ae564f4b
Link: http://lkml.kernel.org/r/20171210095130.17110-1-mhocko@kernel.org
Fixes: 212925802454 ("mm: oom: let oom_reap_task and exit_mmap run concurrently")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: David Rientjes <rientjes@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Andrea Argangeli <andrea@kernel.org>
Cc: <stable@vger.kernel.org>	[4.14]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-Commit: 4837fe37adff1d159904f0c013471b1ecbcb455e
Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
2017-12-28 19:00:26 +05:30
Olav Haugan
58e45fd448 sched: Export wake_to_idle API
Export wake_to_idle APIs so that external modules can access these
functions to improve performance.

Change-Id: I0863a2e80a303c7584ca52ef81c19d369e840662
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
2017-11-14 10:13:50 -08:00
Linux Build Service Account
9624f6c9b9 Merge "softirq: defer softirq processing to ksoftirqd if CPU is busy with RT" 2017-11-06 08:31:37 -08:00
Imran Khan
a9788f4c9d hung task: check specific tasks for long uninterruptible sleep state
khungtask by default monitors all tasks for long unterruptible sleep.
This change introduces a sysctl option, /proc/sys/kernel/
hung_task_selective_monitoring, to enable monitoring selected tasks.
If this sysctl option is enabled then only the tasks with
/proc/$PID/hang_detection_enabled set are to be monitored,
otherwise all tasks are monitored as default case.

Some tasks may intentionally moves to uninterruptable sleep state,
which shouldn't leads to khungtask panics, as those are recoverable
hungs. So to avoid false hung reports, add an option to select tasks
to be monitored and report/panic them only.
By default, enable the feature always to monitor selected tasks.

Change-Id: I48cd8cfe73dbe2b577541fe9607190eac5556bb2
Signed-off-by: Imran Khan <kimran@codeaurora.org>
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
2017-10-25 13:51:29 +05:30
Puja Gupta
8cd9db48d8 sched: improve the scheduler
This change is for general scheduler improvement.

CRs-Fixed: 2110273
Change-Id: Icdaa19125c0351426d5545393dad776690b75b76
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
2017-09-25 17:24:23 -07:00
Linux Build Service Account
22442ed9e0 Merge "Merge remote-tracking branch '4.9/tmp-85e1c01' into 4.9" 2017-09-20 17:51:49 -07:00
Linux Build Service Account
0bf0f94862 Merge "sched: introduce per CPU sched_load_boost knob" 2017-09-13 19:07:32 -07:00
Kyle Yan
7d337cc7f9 Merge remote-tracking branch '4.9/tmp-85e1c01' into 4.9
* 4.9/tmp-85e1c01:
  Linux 4.9.48
  epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove()
  kvm: arm/arm64: Force reading uncached stage2 PGD
  drm/ttm: Fix accounting error when fail to get pages for pool
  xfrm: policy: check policy direction value
  lib/mpi: kunmap after finishing accessing buffer
  wl1251: add a missing spin_lock_init()
  CIFS: remove endian related sparse warning
  CIFS: Fix maximum SMB2 header size
  alpha: uapi: Add support for __SANE_USERSPACE_TYPES__
  cpuset: Fix incorrect memory_pressure control file mapping
  cpumask: fix spurious cpumask_of_node() on non-NUMA multi-node configs
  ceph: fix readpage from fscache
  mm, madvise: ensure poisoned pages are removed from per-cpu lists
  mm, uprobes: fix multiple free of ->uprobes_state.xol_area
  crypto: algif_skcipher - only call put_page on referenced and used pages
  i2c: ismt: Return EMSGSIZE for block reads with bogus length
  i2c: ismt: Don't duplicate the receive length for block reads
  irqchip: mips-gic: SYNC after enabling GIC region
  ANDROID: fiq_debugger: Fix minor bug in code
  ANDROID: configs: remove requirement for CONFIG_SYNC
  FROMLIST: binder: fix an ret value override
  FROMLIST: binder: fix memory corruption in binder_transaction binder
  Linux 4.9.47
  lz4: fix bogus gcc warning
  scsi: sg: reset 'res_in_use' after unlinking reserved array
  scsi: sg: protect accesses to 'reserved' page array
  locking/spinlock/debug: Remove spinlock lockup detection code
  arm64: fpsimd: Prevent registers leaking across exec
  x86/io: Add "memory" clobber to insb/insw/insl/outsb/outsw/outsl
  arm64: mm: abort uaccess retries upon fatal signal
  kvm: arm/arm64: Fix race in resetting stage2 PGD
  gcov: support GCC 7.1
  staging: wilc1000: simplify vif[i]->ndev accesses
  scsi: isci: avoid array subscript warning
  p54: memset(0) whole array
  FROMLIST: android: binder: Add page usage in binder stats
  FROMLIST: android: binder: Add shrinker tracepoints
  FROMLIST: android: binder: Add global lru shrinker to binder
  FROMLIST: android: binder: Move buffer out of area shared with user space
  FROMLIST: android: binder: Add allocator selftest
  FROMLIST: android: binder: Refactor prev and next buffer into a helper function
  android: android-base.config: enable IP6_NF_MATCH_RPFILTER
  Linux 4.9.46
  powerpc/mm: Ensure cpumask update is ordered
  ACPI: EC: Fix regression related to wrong ECDT initialization order
  ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
  ACPI: ioapic: Clear on-stack resource before using it
  ntb: transport shouldn't disable link due to bogus values in SPADs
  ntb: ntb_test: ensure the link is up before trying to configure the mws
  ntb: no sleep in ntb_async_tx_submit
  NTB: ntb_test: fix bug printing ntb_perf results
  ntb_transport: fix bug calculating num_qps_mw
  ntb_transport: fix qp count bug
  Clarify (and fix) MAX_LFS_FILESIZE macros
  staging: rtl8188eu: add RNX-N150NUB support
  iio: hid-sensor-trigger: Fix the race with user space powering up sensors
  iio: imu: adis16480: Fix acceleration scale factor for adis16480
  ANDROID: binder: fix proc->tsk check.
  binder: Use wake up hint for synchronous transactions.
  binder: use group leader instead of open thread
  Revert "android: binder: Sanity check at binder ioctl"
  Bluetooth: bnep: fix possible might sleep error in bnep_session
  Bluetooth: cmtp: fix possible might sleep error in cmtp_session
  Bluetooth: hidp: fix possible might sleep error in hidp_session_thread
  netfilter: nat: fix src map lookup
  Revert "leds: handle suspend/resume in heartbeat trigger"
  net: sunrpc: svcsock: fix NULL-pointer exception
  x86/mm: Fix use-after-free of ldt_struct
  timers: Fix excessive granularity of new timers after a nohz idle
  perf/x86/intel/rapl: Make package handling more robust
  perf probe: Fix --funcs to show correct symbols for offline module
  perf/core: Fix group {cpu,task} validation
  ftrace: Check for null ret_stack on profile function graph entry function
  nfsd: Limit end of page list when decoding NFSv4 WRITE
  cifs: return ENAMETOOLONG for overlong names in cifs_open()/cifs_lookup()
  cifs: Fix df output for users with quota limits
  kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured
  tracing: Fix freeing of filter in create_filter() when set_str is false
  tracing: Fix kmemleak in tracing_map_array_free()
  tracing: Call clear_boot_tracer() at lateinit_sync
  drm: rcar-du: Fix H/V sync signal polarity configuration
  drm: rcar-du: Fix display timing controller parameter
  drm: rcar-du: Fix crash in encoder failure error path
  drm/atomic: If the atomic check fails, return its value first
  drm: Release driver tracking before making the object available again
  mm/memblock.c: reversed logic in memblock_discard()
  fork: fix incorrect fput of ->exe_file causing use-after-free
  mm/madvise.c: fix freeing of locked page with MADV_FREE
  i2c: designware: Fix system suspend
  mm, shmem: fix handling /sys/kernel/mm/transparent_hugepage/shmem_enabled
  ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
  ALSA: firewire: fix NULL pointer dereference when releasing uninitialized data of iso-resource
  ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)
  ALSA: core: Fix unexpected error at replacing user TLV
  ALSA: usb-audio: Add delay quirk for H650e/Jabra 550a USB headsets
  KVM: x86: block guest protection keys unless the host has them enabled
  KVM: s390: sthyi: fix specification exception detection
  KVM: s390: sthyi: fix sthyi inline assembly
  Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad
  Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
  Input: trackpoint - add new trackpoint firmware ID
  bpf/verifier: fix min/max handling in BPF_SUB
  bpf: fix mixed signed/unsigned derived min/max value bounds
  bpf, verifier: fix alu ops against map_value{, _adj} register types
  bpf: adjust verifier heuristics
  bpf, verifier: add additional patterns to evaluate_reg_imm_alu
  net_sched: fix order of queue length updates in qdisc_replace()
  net: sched: fix NULL pointer dereference when action calls some targets
  irda: do not leak initialized list.dev to userspace
  net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled
  tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
  ipv6: repair fib6 tree in failure case
  ipv6: reset fn->rr_ptr when replacing route
  tipc: fix use-after-free
  sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
  nfp: fix infinite loop on umapping cleanup
  ipv4: better IP_MAX_MTU enforcement
  ptr_ring: use kmalloc_array()
  openvswitch: fix skb_panic due to the incorrect actions attrlen
  bpf: fix bpf_trace_printk on 32 bit archs
  net_sched: remove warning from qdisc_hash_add
  net_sched/sfq: update hierarchical backlog when drop packet
  ipv4: fix NULL dereference in free_fib_info_rcu()
  dccp: defer ccid_hc_tx_delete() at dismantle time
  dccp: purge write queue in dccp_destroy_sock()
  af_key: do not use GFP_KERNEL in atomic contexts
  sparc64: remove unnecessary log message
  ANDROID: NFC: st21nfca: Fix memory OOB and leak issues in connectivity events handler
  Linux 4.9.45
  usb: qmi_wwan: add D-Link DWM-222 device ID
  usb: optimize acpi companion search for usb port devices
  pids: make task_tgid_nr_ns() safe
  Sanitize 'move_pages()' permission checks
  genirq/ipi: Fixup checks against nr_cpu_ids
  genirq: Restore trigger settings in irq_modify_status()
  irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
  irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
  x86/asm/64: Clear AC on NMI entries
  xen-blkfront: use a right index when checking requests
  powerpc: Fix VSX enabling/flushing to also test MSR_FP and MSR_VEC
  blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
  xen: fix bio vec merging
  mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes
  mm/mempolicy: fix use after free when calling get_mempolicy
  mm: fix double mmap_sem unlock on MMF_UNSTABLE enforced SIGBUS
  mm: discard memblock data later
  ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
  ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
  ALSA: seq: 2nd attempt at fixing race creating a queue
  Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
  Input: elan_i2c - add ELAN0608 to the ACPI table
  crypto: x86/sha1 - Fix reads beyond the number of blocks passed
  crypto: ixp4xx - Fix error handling path in 'aead_perform()'
  parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
  audit: Fix use after free in audit_remove_watch_rule()
  netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
  ANDROID: check dir value of xfrm_userpolicy_id
  ANDROID: NFC: Fix possible memory corruption when handling SHDLC I-Frame commands
  ANDROID: nfc: fdp: Fix possible buffer overflow in WCS4000 NFC driver
  ANDROID: NFC: st21nfca: Fix out of bounds kernel access when handling ATR_REQ
  ANDROID: usb: gadget: assign no-op request complete callbacks
  ANDROID: usb: gadget: configfs: fix null ptr in android_disconnect
  ANDROID: uid_sys_stats: Fix implicit declaration of get_cmdline()
  uid_sys_stats: log task io with a debug flag
  Linux 4.9.44
  MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
  pinctrl: meson-gxbb: Add missing GPIODV_18 pin entry
  pinctrl: samsung: Remove bogus irq_[un]mask from resource management
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD20
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD11
  pinctrl: intel: merrifield: Correct UART pin lists
  pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver
  pnfs/blocklayout: require 64-bit sector_t
  iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits
  usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume
  usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter
  usb: core: unlink urbs from the tail of the endpoint's urb_list
  USB: Check for dropped connection before switching to full speed
  usb: renesas_usbhs: Fix UGCTRL2 value for R-Car Gen3
  usb: gadget: udc: renesas_usb3: Fix usb_gadget_giveback_request() calling
  uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069
  staging: comedi: comedi_fops: do not call blocking ops when !TASK_RUNNING
  iio: light: tsl2563: use correct event code
  iio: accel: bmc150: Always restore device to normal mode after suspend-resume
  staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
  USB: hcd: Mark secondary HCD as dead if the primary one died
  usb: musb: fix tx fifo flush handling again
  USB: serial: pl2303: add new ATEN device id
  USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
  USB: serial: option: add D-Link DWM-222 device ID
  drm/i915: Fix out-of-bounds array access in bdw_load_gamma_lut
  drm/etnaviv: Fix off-by-one error in reloc checking
  nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
  mmc: mmc: correct the logic for setting HS400ES signal voltage
  nand: fix wrong default oob layout for small pages using soft ecc
  fuse: initialize the flock flag in fuse_file on allocation
  target: Fix node_acl demo-mode + uncached dynamic shutdown regression
  iscsi-target: Fix iscsi_np reset hung task during parallel delete
  iscsi-target: fix memory leak in iscsit_setup_text_cmd()
  mtd: nand: Fix timing setup for NANDs that do not support SET FEATURES
  xtensa: don't limit csum_partial export by CONFIG_NET
  xtensa: mm/cache: add missing EXPORT_SYMBOLs
  xtensa: fix cache aliasing handling code for WT cache
  futex: Remove unnecessary warning from get_futex_key
  mm: fix list corruptions on shmem shrinklist
  mm: ratelimit PFNs busy info message
  ANDROID: Use sk_uid to replace uid get from socket file
  Linux 4.9.43
  Revert "ARM: dts: sun8i: Support DTB build for NanoPi M1"
  KVM: arm/arm64: Handle hva aging while destroying the vm
  sparc64: Prevent perf from running during super critical sections
  udp: consistently apply ufo or fragmentation
  revert "ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output"
  revert "net: account for current skb length when deciding about UFO"
  packet: fix tp_reserve race in packet_set_ring
  igmp: Fix regression caused by igmp sysctl namespace code.
  net: avoid skb_warn_bad_offload false positives on UFO
  tcp: fastopen: tcp_connect() must refresh the route
  net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target
  net/mlx4_en: don't set CHECKSUM_COMPLETE on SCTP packets
  bpf, s390: fix jit branch offset related to ldimm64
  net: fix keepalive code vs TCP_FASTOPEN_CONNECT
  tcp: avoid setting cwnd to invalid ssthresh after cwnd reduction states
  ppp: fix xmit recursion detection on ppp channels
  ppp: Fix false xmit recursion detect with two ppp devices
  Linux 4.9.42
  workqueue: implicit ordered attribute should be overridable
  net: phy: Fix PHY unbind crash
  net: account for current skb length when deciding about UFO
  ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output
  net/mlx5: E-Switch, Re-enable RoCE on mode change only after FDB destroy
  mm: don't dereference struct page fields of invalid pages
  signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
  lib/Kconfig.debug: fix frv build failure
  mm, slab: make sure that KMALLOC_MAX_SIZE will fit into MAX_ORDER
  ARM: 8632/1: ftrace: fix syscall name matching
  virtio_blk: fix panic in initialization error path
  nbd: blk_mq_init_queue returns an error code on failure, not NULL
  iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort
  ARM: dts: sunxi: Change node name for pwrseq pin on Olinuxino-lime2-emmc
  ARM: dts: sun8i: Support DTB build for NanoPi M1
  drm/virtio: fix framebuffer sparse warning
  scsi: qla2xxx: Get mutex lock before checking optrom_state
  clk/samsung: exynos542x: mark some clocks as critical
  ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int
  phy state machine: failsafe leave invalid RUNNING state
  netfilter: use fwmark_reflect in nf_send_reset
  ASoC: rt5645: set sel_i2s_pre_div1 to 2
  spi: spi-axi: Free resources on error path
  x86/boot: Add missing declaration of string functions
  tg3: Fix race condition in tg3_get_stats64().
  net: phy: dp83867: fix irq generation
  sh_eth: R8A7740 supports packet shecksumming
  sh_eth: fix EESIPR values for SH77{34|63}
  wext: handle NULL extra data in iwe_stream_add_point better
  sparc64: Fix exception handling in UltraSPARC-III memcpy.
  sparc64: Measure receiver forward progress to avoid send mondo timeout
  xen-netback: correctly schedule rate-limited queues
  net: phy: Correctly process PHY_HALTED in phy_stop_machine()
  net/mlx5e: Schedule overflow check work to mlx5e workqueue
  net/mlx5e: Fix wrong delay calculation for overflow check scheduling
  net/mlx5e: Fix outer_header_zero() check size
  net/mlx5: Fix command bad flow on command entry allocation failure
  net/mlx5: Consider tx_enabled in all modes on remap
  sctp: fix the check for _sctp_walk_params and _sctp_walk_errors
  sctp: don't dereference ptr before leaving _sctp_walk_{params, errors}()
  dccp: fix a memleak for dccp_feat_init err process
  dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly
  dccp: fix a memleak that dccp_ipv6 doesn't put reqsk properly
  net: ethernet: nb8800: Handle all 4 RGMII modes identically
  ipv6: Don't increase IPSTATS_MIB_FRAGFAILS twice in ip6_fragment()
  packet: fix use-after-free in prb_retire_rx_blk_timer_expired()
  openvswitch: fix potential out of bound access in parse_ct
  mcs7780: Fix initialization when CONFIG_VMAP_STACK is enabled
  rtnetlink: allocate more memory for dev_set_mac_address()
  ipv4: initialize fib_trie prior to register_netdev_notifier call.
  net: dsa: b53: Add missing ARL entries for BCM53125
  ipv6: avoid overflow of offset in ip6_find_1stfragopt
  net: Zero terminate ifr_name in dev_ifname().
  ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check()
  tcp_bbr: init pacing rate on first RTT sample
  tcp_bbr: remove sk_pacing_rate=0 transient during init
  tcp_bbr: introduce bbr_init_pacing_rate_from_rtt() helper
  tcp_bbr: introduce bbr_bw_to_pacing_rate() helper
  tcp_bbr: cut pacing rate only if filled pipe
  saa7164: fix double fetch PCIe access condition
  Btrfs: fix early ENOSPC due to delalloc
  f2fs: sanity check checkpoint segno and blkoff
  media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds
  mmc: core: Use device_property_read instead of of_property_read
  mmc: dw_mmc: Use device_property_read instead of of_property_read
  iscsi-target: Fix initial login PDU asynchronous socket close OOPs
  media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS ioctl
  ARM: dts: tango4: Request RGMII RX and TX clock delays
  ARM: dts: armada-38x: Fix irq type for pca955
  ext4: fix overflow caused by missing cast in ext4_resize_fs()
  ext4: fix SEEK_HOLE/SEEK_DATA for blocksize < pagesize
  gpiolib: skip unwanted events, don't convert them to opposite edge
  iommu/amd: Enable ga_log_intr when enabling guest_mode
  powerpc/64: Fix __check_irq_replay missing decrementer interrupt
  powerpc/tm: Fix saving of TM SPRs in core dump
  timers: Fix overflow in get_next_timer_interrupt
  mm/page_alloc: Remove kernel address exposure in free_reserved_area()
  KVM: async_pf: make rcu irq exit if not triggered from idle task
  ASoC: do not close shared backend dailink
  drm/amdgpu: Fix undue fallthroughs in golden registers initialization
  ALSA: hda - Fix speaker output from VAIO VPCL14M1R
  cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
  mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
  mmc: core: Fix access to HS400-ES devices
  device property: Make dev_fwnode() public
  mmc: sdhci-of-at91: force card detect value for non removable devices
  NFSv4: Fix EXCHANGE_ID corrupt verifier issue
  brcmfmac: fix memleak due to calling brcmf_sdiod_sgtable_alloc() twice
  iwlwifi: dvm: prevent an out of bounds access
  workqueue: restore WQ_UNBOUND/max_active==1 to be ordered
  libata: array underflow in ata_find_dev()
  cgroup: fix error return value from cgroup_subtree_control()
  cgroup: create dfl_root files on subsys registration
  parisc: Handle vma's whose context is not current in flush_cache_range
  ANDROID: binder: don't queue async transactions to thread.
  ANDROID: binder: don't enqueue death notifications to thread todo.
  ANDROID: binder: call poll_wait() unconditionally.
  ANDROID: keychord: Fix for a memory leak in keychord.
  ANDROID: keychord: Fix races in keychord_write.
  android: configs: move quota-related configs to recommended
  ANDROID: sdcardfs: override credential for ioctl to lower fs
  ANDROID: xt_qtaguid: handle properly request sockets

Conflicts:
	drivers/staging/android/fiq_debugger/fiq_debugger.c
	include/linux/sched.h
	kernel/locking/spinlock_debug.c
	sound/soc/soc-pcm.c

Change-Id: I163a8c98f1737eeb01b9c8a0636a91d552ef349f
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-09-07 14:32:09 -07:00
Joonwoo Park
858d5751bc sched: introduce per CPU sched_load_boost knob
Introduce a new knob sched_load_boost that allows userspace to
provide additional CPU capacity margin to work running on CPUs.  The
applied margin is linearly proportional to the actual load on the CPU
and sched_load_boost.  The applied margin is not affected by the max
capacity of the CPUs in the system.

Userspace could increase this for exceedingly sporadic workloads in
case the existing margin isn't sufficient.

Also, while at it, refactor cpu_util_freq().

Change-Id: I07379aa3c5d9e670f67886323e2e32225a1bdef9
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2017-09-07 13:07:16 -07:00
Greg Kroah-Hartman
5731c30334 Merge 4.9.45 into android-4.9
Changes in 4.9.45
	netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
	audit: Fix use after free in audit_remove_watch_rule()
	parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
	crypto: ixp4xx - Fix error handling path in 'aead_perform()'
	crypto: x86/sha1 - Fix reads beyond the number of blocks passed
	Input: elan_i2c - add ELAN0608 to the ACPI table
	Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
	ALSA: seq: 2nd attempt at fixing race creating a queue
	ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
	ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
	mm: discard memblock data later
	mm: fix double mmap_sem unlock on MMF_UNSTABLE enforced SIGBUS
	mm/mempolicy: fix use after free when calling get_mempolicy
	mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes
	xen: fix bio vec merging
	blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
	powerpc: Fix VSX enabling/flushing to also test MSR_FP and MSR_VEC
	xen-blkfront: use a right index when checking requests
	x86/asm/64: Clear AC on NMI entries
	irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
	irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
	genirq: Restore trigger settings in irq_modify_status()
	genirq/ipi: Fixup checks against nr_cpu_ids
	Sanitize 'move_pages()' permission checks
	pids: make task_tgid_nr_ns() safe
	usb: optimize acpi companion search for usb port devices
	usb: qmi_wwan: add D-Link DWM-222 device ID
	Linux 4.9.45

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2017-08-29 14:51:49 +02:00
Kyle Yan
e2486b7abe Merge remote-tracking branch '4.9/tmp-e6b0c64f' into 4.9
* 4.9/tmp-e6b0c64f:
  Linux 4.9.41
  ASoC: dpcm: Avoid putting stream state to STOP when FE stream is paused
  ASoC: Intel: Skylake: Release FW ctx in cleanup
  scsi: bfa: Increase requested firmware version to 3.2.5.1
  scsi: snic: Return error code on memory allocation failure
  scsi: fnic: Avoid sending reset to firmware when another reset is in progress
  HID: ignore Petzl USB headlamp
  ASoC: Intel: bytcr-rt5640: fix settings in internal clock mode
  perf/x86: Set pmu->module in Intel PMU modules
  x86/platform/intel-mid: Rename 'spidev' to 'mrfld_spidev'
  ALSA: usb-audio: test EP_FLAG_RUNNING at urb completion
  ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
  sh_eth: enable RX descriptor word 0 shift on SH7734
  ASoC: fsl_ssi: set fifo watermark to more reliable value
  net: usb: asix_devices: add .reset_resume for USB PM
  nvmem: imx-ocotp: Fix wrong register size
  arm64: mm: fix show_pte KERN_CONT fallout
  vfio-pci: Handle error from pci_iomap
  video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap
  perf symbols: Robustify reading of build-id from sysfs
  perf tools: Install tools/lib/traceevent plugins with install-bin
  xfrm: Don't use sk_family for socket policy lookups
  tools lib traceevent: Fix prev/next_prio for deadline tasks
  Xen: ARM: Zero reserved fields of xatp before making hypervisor call
  Btrfs: adjust outstanding_extents counter properly when dio write is split
  benet: stricter vxlan offloading check in be_features_check
  Btrfs: fix lockdep warning about log_mutex
  Btrfs: use down_read_nested to make lockdep silent
  usb: gadget: Fix copy/pasted error message
  ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
  ARM: s3c2410_defconfig: Fix invalid values for NF_CT_PROTO_*
  perf probe: Fix to get correct modname from elf header
  ARM64: zynqmp: Fix i2c node's compatible string
  ARM64: zynqmp: Fix W=1 dtc 1.4 warnings
  usb: dwc3: omap: fix race of pm runtime with irq handler in probe
  dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.
  l2tp: consider '::' as wildcard address in l2tp_ip6 socket lookup
  dmaengine: ioatdma: workaround SKX ioatdma version
  dmaengine: ioatdma: Add Skylake PCI Dev ID
  openrisc: Add _text symbol to fix ksym build error
  irqchip/mxs: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
  ASoC: nau8825: fix invalid configuration in Pre-Scalar of FLL
  spi: dw: Make debugfs name unique between instances
  ASoC: tlv320aic3x: Mark the RESET register as volatile
  irqchip/keystone: Fix "scheduling while atomic" on rt
  vfio-pci: use 32-bit comparisons for register address for gcc-4.5
  drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
  drm/msm: Put back the vaddr in submit_reloc()
  drm/msm: Ensure that the hardware write pointer is valid
  net/mlx4_core: Fix raw qp flow steering rules under SRIOV
  net/mlx4: Remove BUG_ON from ICM allocation routine
  net/mlx4_core: Use-after-free causes a resource leak in flow-steering detach
  ipv6: Should use consistent conditional judgement for ip6 fragment between __ip6_append_data and ip6_finish_output
  net/mlx5: Disable RoCE on the e-switch management port under switchdev mode
  ARM: dts: n900: Mark eMMC slot with no-sdio and no-sd flags
  ARM: dts: am57xx-idk: Put USB2 port in peripheral mode
  dt-bindings: input: Specify the interrupt number of TPS65217 power button
  dt-bindings: power/supply: Update TPS65217 properties
  ARM: omap2+: fixing wrong strcat for Non-NULL terminated string
  r8169: add support for RTL8168 series add-on card.
  x86/mce/AMD: Make the init code more robust
  device-dax: fix sysfs duplicate warnings
  net: skb_needs_check() accepts CHECKSUM_NONE for tx
  pstore: Use dynamic spinlock initializer
  pstore: Correctly initialize spinlock and flags
  pstore: Allow prz to control need for locking
  v4l: s5c73m3: fix negation operator
  dentry name snapshots
  ipmi/watchdog: fix watchdog timeout set on reboot
  RDMA/uverbs: Fix the check for port number
  sched/cgroup: Move sched_online_group() back into css_online() to fix crash
  mailbox: handle empty message in tx_tick
  mailbox: skip complete wait event if timer expired
  mailbox: always wait in mbox_send_message for blocking Tx mode
  wil6210: fix deadlock when using fw_no_recovery option
  ath10k: fix null deref on wmi-tlv when trying spectral scan
  isdn/i4l: fix buffer overflow
  isdn: Fix a sleep-in-atomic bug
  net: phy: Do not perform software reset for Generic PHY
  nfc: fdp: fix NULL pointer dereference
  nfc: Fix hangup of RC-S380* in port100_send_ack()
  smp/hotplug: Replace BUG_ON and react useful
  smp/hotplug: Move unparking of percpu threads to the control CPU
  drm: rcar-du: Simplify and fix probe error handling
  Staging: comedi: comedi_fops: Avoid orphaned proc entry
  Revert "powerpc/numa: Fix percpu allocations to be NUMA aware"
  KVM: PPC: Book3S HV: Save/restore host values of debug registers
  KVM: PPC: Book3S HV: Restore critical SPRs to host values on guest exit
  drm/nouveau/bar/gf100: fix access to upper half of BAR2
  drm/nouveau/disp/nv50-: bump max chans to 21
  drm/vmwgfx: Fix gcc-7.1.1 warning
  md/raid5: add thread_group worker async_tx_issue_pending_all
  KVM: PPC: Book3S HV: Enable TM before accessing TM registers
  crypto: authencesn - Fix digest_null crash
  NFSv4.1: Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
  NFS: invalidate file size when taking a lock.
  powerpc/pseries: Fix of_node_put() underflow during reconfig remove
  parisc: Suspend lockup detectors before system halt
  parisc: Extend disabled preemption in copy_user_page
  parisc: Prevent TLB speculation on flushed pages on CPUs that only support equivalent aliases
  ALSA: hda - Add missing NVIDIA GPU codec IDs to patch table
  ALSA: fm801: Initialize chip after IRQ handler is registered
  jfs: Don't clear SGID when inheriting ACLs
  net: reduce skb_warn_bad_offload() noise
  pstore: Make spinlock per zone instead of global
  af_key: Add lock to key dump
  ANDROID: sched/fair: Add a backup_cpu to find_best_target
  ANDROID: sched/fair: Try to estimate possible idle states.
  ANDROID: sched/fair: Sync task util before EAS wakeup
  ANDROID: Revert "sched/fair: ensure utilization signals are synchronized before use"
  ANDROID: sched/fair: kick nohz idle balance for misfit task
  ANDROID: sched/fair: Update signals of nohz cpus if we are going idle
  ANDROID: events: add tracepoint for find_best_target
  ANDROID: sched/fair: streamline find_best_target heuristics
  UPSTREAM: cpufreq: schedutil: Trace frequency only if it has changed
  UPSTREAM: cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely
  UPSTREAM: cpufreq: schedutil: Refactor sugov_next_freq_shared()
  UPSTREAM: cpufreq: schedutil: Pass sg_policy to get_next_freq()
  UPSTREAM: cpufreq: schedutil: Rectify comment in sugov_irq_work() function
  UPSTREAM: cpufreq: schedutil: irq-work and mutex are only used in slow path
  UPSTREAM: cpufreq: schedutil: enable fast switch earlier
  UPSTREAM: cpufreq: schedutil: Avoid indented labels
  ANDROID: sched/{fair,tune}: simplify fair.c code
  ANDROID: FIXUP: sched/tune: update accouting before CPU capacity
  ANDROID: sched: walt: fix window misalignment when HZ=300
  ANDROID: sched/fair: Remove remnants of commit 608d49484e
  ANDROID: schedstats/eas: guard properly to avoid breaking non-smp schedstats users
  ANDROID: sched/tune: don't use schedtune before it is ready
  ANDROID: sched/fair: use SCHED_CAPACITY_SCALE for energy normalization
  ANDROID: sched/{fair,tune}: use reciprocal_value to compute boost margin
  ANDROID: sched/tune: Initialize raw_spin_lock in boosted_groups
  ANDROID: sched/tune: report when SchedTune has not been initialized
  ANDROID: sched/tune: fix sched_energy_diff tracepoint
  ANDROID: sched/tune: increase group count to 5
  ANDROID: cpufreq/schedutil: use boosted_cpu_util for PELT to match WALT
  ANDROID: sched/fair: Fix sched_group_energy() to support per-cpu capacity states
  ANDROID: sched/fair: discount task contribution to find CPU with lowest utilization
  ANDROID: sched/fair: ensure utilization signals are synchronized before use
  ANDROID: sched/fair: remove task util from own cpu when placing waking task
  ANDROID: trace:sched: Make util_avg in load_avg trace reflect PELT/WALT as used
  ANDROID: sched/fair: Add eas (& cas) specific rq, sd and task stats
  ANDROID: sched/core: Fix PELT jump to max OPP upon util increase
  ANDROID: sched: EAS & 'single cpu per cluster'/cpu hotplug interoperability
  UPSTREAM: sched/core: Fix group_entity's share update
  UPSTREAM: sched/fair: Propagate asynchrous detach
  UPSTREAM: sched/fair: Propagate load during synchronous attach/detach
  UPSTREAM: sched/fair: Factorize attach/detach entity
  ANDROID: sched/fair: Simplify idle_idx handling in select_idle_sibling()
  ANDROID: sched/fair: refactor find_best_target() for simplicity
  ANDROID: sched/fair: Change cpu iteration order in find_best_target()
  ANDROID: sched/core: Add first cpu w/ max/min orig capacity to root domain
  ANDROID: sched/core: Remove remnants of commit fd5c98da1a42
  ANDROID: sched: Remove sysctl_sched_is_big_little
  ANDROID: sched/fair: Code !is_big_little path into select_energy_cpu_brute()
  ANDROID: EAS: sched/fair: Re-integrate 'honor sync wakeups' into wakeup path
  ANDROID: Fixup!: sched/fair.c: Set SchedTune specific struct energy_env.task
  ANDROID: sched/fair: Energy-aware wake-up task placement
  ANDROID: sched/fair: Add energy_diff dead-zone margin
  ANDROID: arm64: Set SD_ASYM_CPUCAPACITY sched_domain flag on DIE level
  UPSTREAM: sched/fair: Fix incorrect comment for capacity_margin
  UPSTREAM: sched/fair: Avoid pulling tasks from non-overloaded higher capacity groups
  UPSTREAM: sched/fair: Add per-CPU min capacity to sched_group_capacity
  UPSTREAM: sched/fair: Consider spare capacity in find_idlest_group()
  UPSTREAM: sched/fair: Compute task/cpu utilization at wake-up correctly
  ANDROID: Partial Revert: "ANDROID: sched: Add cpu capacity awareness to wakeup balancing"
  ANDROID: sched/fair: Decommission energy_aware_wake_cpu()
  ANDROID: Revert "WIP: sched: Consider spare cpu capacity at task wake-up"
  FROM-LIST: cpufreq: schedutil: Redefine the rate_limit_us tunable
  ANDROID: cpufreq: schedutil: add up/down frequency transition rate limits
  ANDROID: trace/sched: add rq utilization signal for WALT
  ANDROID: sched/cpufreq: make schedutil use WALT signal
  ANDROID: sched: cpufreq: use rt_avg as estimate of required RT CPU capacity
  UPSTREAM: cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task
  ANDROID: sched/cpufreq: fix tunables for schedfreq governor
  cpufreq: interactive governor drops bits in time calculation
  DEBUG: sched/fair: Fix sched_load_avg_cpu events for task_groups
  DEBUG: sched/fair: Fix missing sched_load_avg_cpu events
  sched: Consider misfit tasks when load-balancing
  ANDROID: binder: Don't BUG_ON(!spin_is_locked()).

Conflicts:
	drivers/cpufreq/cpufreq_interactive.c
	include/trace/events/sched.h
	kernel/cpu.c
	kernel/sched/cpufreq_schedutil.c
	kernel/sched/debug.c
	kernel/sched/fair.c
	kernel/sched/tune.c
	kernel/sched/walt.c
	kernel/sched/walt.h

Change-Id: I04f9e2c5cc6c638742472465080eaa0473f1c799
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-08-25 14:37:26 -07:00
Oleg Nesterov
322cd32623 pids: make task_tgid_nr_ns() safe
commit dd1c1f2f2028a7b851f701fc6a8ebe39dcb95e7c upstream.

This was reported many times, and this was even mentioned in commit
52ee2dfdd4 ("pids: refactor vnr/nr_ns helpers to make them safe") but
somehow nobody bothered to fix the obvious problem: task_tgid_nr_ns() is
not safe because task->group_leader points to nowhere after the exiting
task passes exit_notify(), rcu_read_lock() can not help.

We really need to change __unhash_process() to nullify group_leader,
parent, and real_parent, but this needs some cleanups.  Until then we
can turn task_tgid_nr_ns() into another user of __task_pid_nr_ns() and
fix the problem.

Reported-by: Troy Kensinger <tkensinger@google.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-24 17:12:21 -07:00
Greg Kroah-Hartman
02f29ab1b9 Merge 4.9.42 into android-4.9
Changes in 4.9.42
	parisc: Handle vma's whose context is not current in flush_cache_range
	cgroup: create dfl_root files on subsys registration
	cgroup: fix error return value from cgroup_subtree_control()
	libata: array underflow in ata_find_dev()
	workqueue: restore WQ_UNBOUND/max_active==1 to be ordered
	iwlwifi: dvm: prevent an out of bounds access
	brcmfmac: fix memleak due to calling brcmf_sdiod_sgtable_alloc() twice
	NFSv4: Fix EXCHANGE_ID corrupt verifier issue
	mmc: sdhci-of-at91: force card detect value for non removable devices
	device property: Make dev_fwnode() public
	mmc: core: Fix access to HS400-ES devices
	mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
	cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
	ALSA: hda - Fix speaker output from VAIO VPCL14M1R
	drm/amdgpu: Fix undue fallthroughs in golden registers initialization
	ASoC: do not close shared backend dailink
	KVM: async_pf: make rcu irq exit if not triggered from idle task
	mm/page_alloc: Remove kernel address exposure in free_reserved_area()
	timers: Fix overflow in get_next_timer_interrupt
	powerpc/tm: Fix saving of TM SPRs in core dump
	powerpc/64: Fix __check_irq_replay missing decrementer interrupt
	iommu/amd: Enable ga_log_intr when enabling guest_mode
	gpiolib: skip unwanted events, don't convert them to opposite edge
	ext4: fix SEEK_HOLE/SEEK_DATA for blocksize < pagesize
	ext4: fix overflow caused by missing cast in ext4_resize_fs()
	ARM: dts: armada-38x: Fix irq type for pca955
	ARM: dts: tango4: Request RGMII RX and TX clock delays
	media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS ioctl
	iscsi-target: Fix initial login PDU asynchronous socket close OOPs
	mmc: dw_mmc: Use device_property_read instead of of_property_read
	mmc: core: Use device_property_read instead of of_property_read
	media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds
	f2fs: sanity check checkpoint segno and blkoff
	Btrfs: fix early ENOSPC due to delalloc
	saa7164: fix double fetch PCIe access condition
	tcp_bbr: cut pacing rate only if filled pipe
	tcp_bbr: introduce bbr_bw_to_pacing_rate() helper
	tcp_bbr: introduce bbr_init_pacing_rate_from_rtt() helper
	tcp_bbr: remove sk_pacing_rate=0 transient during init
	tcp_bbr: init pacing rate on first RTT sample
	ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check()
	net: Zero terminate ifr_name in dev_ifname().
	ipv6: avoid overflow of offset in ip6_find_1stfragopt
	net: dsa: b53: Add missing ARL entries for BCM53125
	ipv4: initialize fib_trie prior to register_netdev_notifier call.
	rtnetlink: allocate more memory for dev_set_mac_address()
	mcs7780: Fix initialization when CONFIG_VMAP_STACK is enabled
	openvswitch: fix potential out of bound access in parse_ct
	packet: fix use-after-free in prb_retire_rx_blk_timer_expired()
	ipv6: Don't increase IPSTATS_MIB_FRAGFAILS twice in ip6_fragment()
	net: ethernet: nb8800: Handle all 4 RGMII modes identically
	dccp: fix a memleak that dccp_ipv6 doesn't put reqsk properly
	dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly
	dccp: fix a memleak for dccp_feat_init err process
	sctp: don't dereference ptr before leaving _sctp_walk_{params, errors}()
	sctp: fix the check for _sctp_walk_params and _sctp_walk_errors
	net/mlx5: Consider tx_enabled in all modes on remap
	net/mlx5: Fix command bad flow on command entry allocation failure
	net/mlx5e: Fix outer_header_zero() check size
	net/mlx5e: Fix wrong delay calculation for overflow check scheduling
	net/mlx5e: Schedule overflow check work to mlx5e workqueue
	net: phy: Correctly process PHY_HALTED in phy_stop_machine()
	xen-netback: correctly schedule rate-limited queues
	sparc64: Measure receiver forward progress to avoid send mondo timeout
	sparc64: Fix exception handling in UltraSPARC-III memcpy.
	wext: handle NULL extra data in iwe_stream_add_point better
	sh_eth: fix EESIPR values for SH77{34|63}
	sh_eth: R8A7740 supports packet shecksumming
	net: phy: dp83867: fix irq generation
	tg3: Fix race condition in tg3_get_stats64().
	x86/boot: Add missing declaration of string functions
	spi: spi-axi: Free resources on error path
	ASoC: rt5645: set sel_i2s_pre_div1 to 2
	netfilter: use fwmark_reflect in nf_send_reset
	phy state machine: failsafe leave invalid RUNNING state
	ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int
	clk/samsung: exynos542x: mark some clocks as critical
	scsi: qla2xxx: Get mutex lock before checking optrom_state
	drm/virtio: fix framebuffer sparse warning
	ARM: dts: sun8i: Support DTB build for NanoPi M1
	ARM: dts: sunxi: Change node name for pwrseq pin on Olinuxino-lime2-emmc
	iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort
	nbd: blk_mq_init_queue returns an error code on failure, not NULL
	virtio_blk: fix panic in initialization error path
	ARM: 8632/1: ftrace: fix syscall name matching
	mm, slab: make sure that KMALLOC_MAX_SIZE will fit into MAX_ORDER
	lib/Kconfig.debug: fix frv build failure
	signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
	mm: don't dereference struct page fields of invalid pages
	net/mlx5: E-Switch, Re-enable RoCE on mode change only after FDB destroy
	ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output
	net: account for current skb length when deciding about UFO
	net: phy: Fix PHY unbind crash
	workqueue: implicit ordered attribute should be overridable
	Linux 4.9.42

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2017-08-11 13:55:02 -07:00
Jamie Iles
916a05b90d signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
[ Upstream commit 2d39b3cd34e6d323720d4c61bd714f5ae202c022 ]

Since commit 00cd5c37af ("ptrace: permit ptracing of /sbin/init") we
can now trace init processes.  init is initially protected with
SIGNAL_UNKILLABLE which will prevent fatal signals such as SIGSTOP, but
there are a number of paths during tracing where SIGNAL_UNKILLABLE can
be implicitly cleared.

This can result in init becoming stoppable/killable after tracing.  For
example, running:

  while true; do kill -STOP 1; done &
  strace -p 1

and then stopping strace and the kill loop will result in init being
left in state TASK_STOPPED.  Sending SIGCONT to init will resume it, but
init will now respond to future SIGSTOP signals rather than ignoring
them.

Make sure that when setting SIGNAL_STOP_CONTINUED/SIGNAL_STOP_STOPPED
that we don't clear SIGNAL_UNKILLABLE.

Link: http://lkml.kernel.org/r/20170104122017.25047-1-jamie.iles@oracle.com
Signed-off-by: Jamie Iles <jamie.iles@oracle.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-11 08:49:36 -07:00
Pavankumar Kondeti
f332a9d53e softirq: defer softirq processing to ksoftirqd if CPU is busy with RT
Defer the softirq processing to ksoftirqd if a RT task is running
or queued on the current CPU. This complements the RT task placement
algorithm which tries to find a CPU that is not currently busy with
softirqs.

Currently NET_TX, NET_RX, BLOCK and TASKLET softirqs are only deferred
as they can potentially run for long time.

Change-Id: Id7665244af6bbd5a96d9e591cf26154e9eaa860c
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-08-07 15:54:09 +05:30
Dietmar Eggemann
af88a165ec ANDROID: sched/fair: Add eas (& cas) specific rq, sd and task stats
The statistic counter are placed in the eas (& cas) wakeup path. Each
of them has one representation for the runqueue (rq), the sched_domain
(sd) and the task.
A task counter is always incremented. A rq counter is always
incremented for the rq the scheduler is currently running on. A sd
counter is only incremented if a relation to a sd exists.

The counters are exposed:

(1) In /proc/schedstat for rq's and sd's:

$ cat /proc/schedstat
...
cpu0 71422 0 2321254 ...
eas  44144 0 0 19446 0 24698 568435 51621 156932 133 222011 17459 120279 516814 83 0 156962 359235 176439 139981
  <- runqueue for cpu0
...
domain0 3 42430 42331 ...
eas 0 0 0 14200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66355 0  <- MC sched domain for cpu0
...

The per-cpu eas vector has the following elements:

sis_attempts  sis_idle   sis_cache_affine sis_suff_cap    sis_idle_cpu    sis_count               ||
secb_attempts secb_sync  secb_idle_bt     secb_insuff_cap secb_no_nrg_sav secb_nrg_sav secb_count ||
fbt_attempts  fbt_no_cpu fbt_no_sd        fbt_pref_idle   fbt_count                               ||
cas_attempts  cas_count

The following relations exist between these counters (from cpu0 eas
vector above):

sis_attempts = sis_idle + sis_cache_affine + sis_suff_cap + sis_idle_cpu + sis_count

44144        = 0        + 0                + 19446        + 0            + 24698

secb_attempts = secb_sync + secb_idle_bt + secb_insuff_cap + secb_no_nrg_sav + secb_nrg_sav + secb_count

568435        = 51621     + 156932       + 133             + 222011          + 17459        + 120279

fbt_attempts = fbt_no_cpu + fbt_no_sd + fbt_pref_idle + fbt_count + (return -1)

516814       = 83         + 0         + 156962        + 359235    + (534)

cas_attempts = cas_count + (return -1 or smp_processor_id())

176439       = 139981    + (36458)

(2) In /proc/$PROCESS_PID/task/$TASK_PID/sched for a task.

example: main thread of system_server

$ cat /proc/1083/task/1083/sched

...
se.statistics.nr_wakeups_sis_attempts        :                  945
se.statistics.nr_wakeups_sis_idle            :                    0
se.statistics.nr_wakeups_sis_cache_affine    :                    0
se.statistics.nr_wakeups_sis_suff_cap        :                  219
se.statistics.nr_wakeups_sis_idle_cpu        :                    0
se.statistics.nr_wakeups_sis_count           :                  726
se.statistics.nr_wakeups_secb_attempts       :                10376
se.statistics.nr_wakeups_secb_sync           :                 1462
se.statistics.nr_wakeups_secb_idle_bt        :                 6984
se.statistics.nr_wakeups_secb_insuff_cap     :                    3
se.statistics.nr_wakeups_secb_no_nrg_sav     :                  927
se.statistics.nr_wakeups_secb_nrg_sav        :                  206
se.statistics.nr_wakeups_secb_count          :                  794
se.statistics.nr_wakeups_fbt_attempts        :                 8914
se.statistics.nr_wakeups_fbt_no_cpu          :                    0
se.statistics.nr_wakeups_fbt_no_sd           :                    0
se.statistics.nr_wakeups_fbt_pref_idle       :                 6987
se.statistics.nr_wakeups_fbt_count           :                 1554
se.statistics.nr_wakeups_cas_attempts        :                 3107
se.statistics.nr_wakeups_cas_count           :                 1195
...

The same relation between the counters as in the per-cpu case apply.

Change-Id: Ie7d01267c78a3f41f60a3ef52917d5a5d463f195
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
[fixed schedstat macros calls to match modifications
made in commit ae92882e56]
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
2017-08-03 15:30:31 -07:00
Pavankumar Kondeti
271e314bd0 sched: add sched_get_cpu_last_busy_time() API
sched_get_cpu_last_busy_time() returns the last time stamp when
a given CPU is busy with more than 2 runnable tasks or has load
greater than 50% of it's max capacity. The LPM driver can make
use of this API and create a policy to prevent a recently loaded
CPU entering deep sleep state.

This API is implemented only for the higher capacity CPUs in
the system. It returns 0 for other CPUs.

Change-Id: I97ef47970a71647f4f55f21165d0cc1351770a53
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-08-03 14:00:46 +05:30
Syed Rameez Mustafa
e14a233319 sched: Scheduler pl enhancement
This change is for general scheduler improvement.

Change-Id: I5ec4bc83c1af2a3edaa047296c505144bd554073
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
[joonwoop: Added SCHED_CPUFREQ_WALT flag and resolved conflict.]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2017-07-31 14:14:29 -07:00
Puja Gupta
487dec641c sched: Remove HMP related code and config
Since HMP is no longer used, remove related code and config options.

Change-Id: I4a30bbdf34c63c9c400e5b826a4758eac26ce607
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-07-22 13:54:48 +05:30
Liam Mark
4f1cdd2baf android/lowmemorykiller: Ignore tasks with freed mm
A killed task can stay in the task list long after its
memory has been returned to the system, therefore
ignore any tasks whose mm struct has been freed.

Change-Id: I76394b203b4ab2312437c839976f0ecb7b6dde4e
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2017-07-20 11:17:28 +05:30
Linux Build Service Account
1fb0f3bece Merge "sched: improve the scheduler" 2017-07-13 17:44:44 -07:00
Linux Build Service Account
e4b4f01e32 Merge "sched: compile sched_avg.c only for SMP" 2017-07-09 06:50:07 -07:00
Pavankumar Kondeti
d4314f03b4 sched: compile sched_avg.c only for SMP
The stats exported by sched_avg.c like running average of
runnable tasks and CPU load are used to manage the number
of active CPUs in the system. There is no use case for this
on UP system.

Change-Id: I09c454e742e78813ddcf4ac98858b77970eeaa1f
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-07-07 10:10:21 +05:30
Syed Rameez Mustafa
f3f7bf8b46 sched: improve the scheduler
This change is for general scheduler improvement.

Change-Id: I17a2530fd3704ece4841340283e754ebfd3d9014
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
2017-07-05 16:51:44 -07:00
Vikram Mulukutla
f6686697bc sched: cpufreq: Limit governor updates to WALT changes alone
It's not necessary to keep reporting load to the governor
if it doesn't change in a window. Limit updates to when
we expect load changes - after window rollover and when
we send updates related to intercluster migrations.

Change-Id: I3232d40f3d54b0b81cfafdcdb99b534df79327bf
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-07-05 16:13:14 -07:00
Linux Build Service Account
d8b8b4dc9d Merge "sched: energy: calculate and update CPU capacity dynamically" 2017-06-19 00:23:50 -07:00
Joonwoo Park
28c5121d62 sched: energy: calculate and update CPU capacity dynamically
One SoC can have multiple CPU speedbins which cannot be represented
with current energy model due to fixed capacity per CPU frequency
steps.

Provide CPU's all possible frequency steps instead of capacities along
with corresponding energy costs to be able to support different
speedbins.

Change-Id: I96ff01372da5c383cd3172999ea1dcf95a7862ce
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2017-06-16 09:02:41 -07:00
Pavankumar Kondeti
708c46badf sched: walt: Free per-cpu prev_window/curr_window upon task exit
The task's per-cpu prev_window/curr_window memory is allocated but
not freed when HMP is not defined. Move free_task_load_ptrs()
to walt.c

Change-Id: Ia70fa0cfb020f0d1b8c127eab8f68930e044e714
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-06-12 11:41:07 +05:30
Pavankumar Kondeti
005309288b core_ctl: un-isolate BIG CPUs more aggressively
The current algorithm to bring additional BIG CPUs is very
conservative. It works when BIG tasks alone run on BIG
cluster. When co-location and scheduler boost features
are activated, small/medium tasks also run on BIG cluster.
We don't want these tasks to downmigrate, when BIG CPUs are
available but isolated. The following changes are done to
un-isolate CPUs more aggressively.

(1) Round up the big_avg. When the big_avg indicates that
there are 1.5 tasks on an average in the last window, it
indicates that we need 2 BIG CPUs not 1 BIG CPU.

(2) Track the maximum number of running tasks in the last
window on all CPUs. If any of the CPU in a cluster has more
than 4 runnable tasks in the last window, bring an additional
CPU to help out.

Change-Id: Id05d9983af290760cec6d93d1bdc45bc5e924cce
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-06-05 10:08:20 +05:30
Syed Rameez Mustafa
20acfe73be sched: improve the scheduler
This change is for general scheduler improvement.

CRs-Fixed: 2040904
Change-Id: I6efa77cd260228a29a0105146fcdecc4b5ee176e
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
2017-05-10 11:36:50 -07:00
Vikram Mulukutla
d0ba188e84 sched: Update rq->cpu_capacity_orig on thermal (LMH) throttling
capacity_orig_of is supposed to return the maximum capacity
of the a CPU based on its FMAX. Given that LMH may limit
the FMAX, let's make sure that cpu_capacity_orig is also
updated when that happens.

Change-Id: I82fbd8587d7b4b82b50fb80d6c9dc78344837bf5
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-05-09 14:46:15 -07:00
Joonwoo Park
84a8088ece sched: WALT: account cumulative window demand
Adequate task packing brings a significant amount of power saving
at cost of minimum wake up latency.  But we need to be extra careful as
excessive task packing can introduce negative impact not only to wake
up latency but also to power aspect as excessive task packing can lead
higher CPU frequency.

The most challenging part is frequency estimation at the time of
task placement to avoid placing on a busy CPU increases CPU's frequency
whereas placing the task on a idle CPU could sustain lower frequency.

Today, EAS utilizes CPU's demand which is accumulated instantaneous
tasks' demands.  However it's not appropriate and can easily lead to
over packing from CPU frequency guidance aspect due to the discrepancy
between instantaneous load and total execution time at the window
boundary.

As a result, introduce a new accounting unit 'cumulative window demand'.
The cumulative window demand tracks all the tasks' demands have seen in
current window which is neither instantaneous nor actual execution time.
It aims to estimate CPU's frequency at the end of current WALT window.

Change-Id: I9908c77ead9973a26dea2b36c001c2baf944d4f5
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2017-05-09 14:46:14 -07:00
Joonwoo Park
f7d6cd4596 sched/walt: factor out WALT from HMP scheduler
At present, hmp.c contains HMP task placement logic as well as WALT.
Factor out WALT logic into a separate file walt.c so EAS can use WALT as
CPU load tracking and frequency guidance algorithm.

Also set sched_io_is_busy = 1 by default.

Change-Id: I96c3fd7d637b9bfa283083a1a6ff6d5dd261e0fb
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2017-05-09 11:22:25 -07:00
Linux Build Service Account
7650561ac4 Merge "Merge remote-tracking branch '4.9/tmp-a2659b2' into 4.9" into msm-4.9 2017-04-26 11:15:11 -07:00
Kyle Yan
11422c7f34 Merge remote-tracking branch '4.9/tmp-a2659b2' into 4.9
* 4.9/tmp-a2659b2:
  Linux 4.9.24
  sctp: deny peeloff operation on asocs with threads sleeping on it
  net: ipv6: check route protocol when deleting routes
  virtio-console: avoid DMA from stack
  cxusb: Use a dma capable buffer also for reading
  dvb-usb-firmware: don't do DMA on stack
  dvb-usb: don't use stack for firmware load
  mm: Tighten x86 /dev/mem with zeroing reads
  rtc: tegra: Implement clock handling
  ACPI / EC: Use busy polling mode when GPE is not enabled
  x86/xen: Fix APIC id mismatch warning on Intel
  platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event
  ASoC: Intel: select DW_DMAC_CORE since it's mandatory
  nbd: fix 64-bit division
  nbd: use loff_t for blocksize and nbd_set_size args
  drm/nouveau/disp/mcp7x: disable dptmds workaround
  mm: memcontrol: use special workqueue for creating per-memcg caches
  ext4: fix inode checksum calculation problem if i_extra_size is small
  dvb-usb-v2: avoid use-after-free
  ath9k: fix NULL pointer dereference
  parisc: Fix get_user() for 64-bit value on 32-bit kernel
  crypto: ahash - Fix EINPROGRESS notification callback
  crypto: algif_aead - Fix bogus request dereference in completion function
  ftrace: Fix function pid filter on instances
  zram: do not use copy_page with non-page aligned address
  kvm: fix page struct leak in handle_vmon
  Revert "MIPS: Lantiq: Fix cascaded IRQ setup"
  char: lack of bool string made CONFIG_DEVPORT always on
  ftrace: Fix removing of second function probe
  irqchip/irq-imx-gpcv2: Fix spinlock initialization
  cpufreq: Bring CPUs up even if cpufreq_online() failed
  pwm: rockchip: State of PWM clock should synchronize with PWM enabled state
  can: ifi: use correct register to read rx status
  libnvdimm: fix reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat
  libnvdimm: fix blk free space accounting
  make skb_copy_datagram_msg() et.al. preserve ->msg_iter on error
  new privimitive: iov_iter_revert()
  xen, fbfront: fix connecting to backend
  target: Avoid mappedlun symlink creation during lun shutdown
  scsi: sd: Fix capacity calculation with 32-bit sector_t
  scsi: qla2xxx: Add fix to read correct register value for ISP82xx.
  scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable
  scsi: sr: Sanity check returned mode data
  iscsi-target: Drop work-around for legacy GlobalSAN initiator
  iscsi-target: Fix TMR reference leak during session shutdown
  efi/fb: Avoid reconfiguration of BAR that covers the framebuffer
  efi/libstub: Skip GOP with PIXEL_BLT_ONLY format
  parisc: fix bugs in pa_memcpy
  ACPI / scan: Set the visited flag for all enumerated devices
  acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison)
  x86/vdso: Plug race between mapping and ELF header setup
  x86/vdso: Ensure vdso32_enabled gets set to valid values only
  x86, pmem: fix broken __copy_user_nocache cache-bypass assumptions
  x86/signals: Fix lower/upper bound reporting in compat siginfo
  x86/efi: Don't try to reserve runtime regions
  perf/x86: Avoid exposing wrong/stale data in intel_pmu_lbr_read_32()
  Input: xpad - add support for Razer Wildcat gamepad
  CIFS: store results of cifs_reopen_file to avoid infinite wait
  CIFS: reconnect thread reschedule itself
  drm/etnaviv: fix missing unlock on error in etnaviv_gpu_submit()
  drm/nouveau/mmu/nv4a: use nv04 mmu rather than the nv44 one
  drm/nouveau/mpeg: mthd returns true on success now
  orangefs: free superblock when mount fails
  zsmalloc: expand class bit
  thp: fix MADV_DONTNEED vs clear soft dirty race
  thp: fix MADV_DONTNEED vs. MADV_FREE race
  tcmu: Skip Data-Out blocks before gathering Data-In buffer for BIDI case
  tcmu: Fix wrongly calculating of the base_command_size
  tcmu: Fix possible overwrite of t_data_sg's last iov[]
  cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
  ANDROID: uid_sys_stats: reduce update_io_stats overhead
  ANDROID: usb: gadget: fix MTP enumeration issue under super speed mode
  Revert "Android: sdcardfs: Don't do d_add for lower fs"
  Android: sdcardfs: Don't complain in fixup_lower_ownership
  Android: sdcardfs: Don't do d_add for lower fs
  ANDROID: sdcardfs: ->iget fixes
  Android: sdcardfs: Change cache GID value

Conflicts:
	drivers/usb/gadget/function/f_mtp.c
	include/linux/cgroup.h

Change-Id: Iae5ef801b6e8386244cf4d498595dc2f11287466
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-04-21 18:12:33 -07:00
Greg Kroah-Hartman
a2659b2b78 Merge 4.9.24 into android-4.9
Changes in 4.9.24:
	cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
	tcmu: Fix possible overwrite of t_data_sg's last iov[]
	tcmu: Fix wrongly calculating of the base_command_size
	tcmu: Skip Data-Out blocks before gathering Data-In buffer for BIDI case
	thp: fix MADV_DONTNEED vs. MADV_FREE race
	thp: fix MADV_DONTNEED vs clear soft dirty race
	zsmalloc: expand class bit
	orangefs: free superblock when mount fails
	drm/nouveau/mpeg: mthd returns true on success now
	drm/nouveau/mmu/nv4a: use nv04 mmu rather than the nv44 one
	drm/etnaviv: fix missing unlock on error in etnaviv_gpu_submit()
	CIFS: reconnect thread reschedule itself
	CIFS: store results of cifs_reopen_file to avoid infinite wait
	Input: xpad - add support for Razer Wildcat gamepad
	perf/x86: Avoid exposing wrong/stale data in intel_pmu_lbr_read_32()
	x86/efi: Don't try to reserve runtime regions
	x86/signals: Fix lower/upper bound reporting in compat siginfo
	x86, pmem: fix broken __copy_user_nocache cache-bypass assumptions
	x86/vdso: Ensure vdso32_enabled gets set to valid values only
	x86/vdso: Plug race between mapping and ELF header setup
	acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison)
	ACPI / scan: Set the visited flag for all enumerated devices
	parisc: fix bugs in pa_memcpy
	efi/libstub: Skip GOP with PIXEL_BLT_ONLY format
	efi/fb: Avoid reconfiguration of BAR that covers the framebuffer
	iscsi-target: Fix TMR reference leak during session shutdown
	iscsi-target: Drop work-around for legacy GlobalSAN initiator
	scsi: sr: Sanity check returned mode data
	scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable
	scsi: qla2xxx: Add fix to read correct register value for ISP82xx.
	scsi: sd: Fix capacity calculation with 32-bit sector_t
	target: Avoid mappedlun symlink creation during lun shutdown
	xen, fbfront: fix connecting to backend
	new privimitive: iov_iter_revert()
	make skb_copy_datagram_msg() et.al. preserve ->msg_iter on error
	libnvdimm: fix blk free space accounting
	libnvdimm: fix reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat
	can: ifi: use correct register to read rx status
	pwm: rockchip: State of PWM clock should synchronize with PWM enabled state
	cpufreq: Bring CPUs up even if cpufreq_online() failed
	irqchip/irq-imx-gpcv2: Fix spinlock initialization
	ftrace: Fix removing of second function probe
	char: lack of bool string made CONFIG_DEVPORT always on
	Revert "MIPS: Lantiq: Fix cascaded IRQ setup"
	kvm: fix page struct leak in handle_vmon
	zram: do not use copy_page with non-page aligned address
	ftrace: Fix function pid filter on instances
	crypto: algif_aead - Fix bogus request dereference in completion function
	crypto: ahash - Fix EINPROGRESS notification callback
	parisc: Fix get_user() for 64-bit value on 32-bit kernel
	ath9k: fix NULL pointer dereference
	dvb-usb-v2: avoid use-after-free
	ext4: fix inode checksum calculation problem if i_extra_size is small
	mm: memcontrol: use special workqueue for creating per-memcg caches
	drm/nouveau/disp/mcp7x: disable dptmds workaround
	nbd: use loff_t for blocksize and nbd_set_size args
	nbd: fix 64-bit division
	ASoC: Intel: select DW_DMAC_CORE since it's mandatory
	platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event
	x86/xen: Fix APIC id mismatch warning on Intel
	ACPI / EC: Use busy polling mode when GPE is not enabled
	rtc: tegra: Implement clock handling
	mm: Tighten x86 /dev/mem with zeroing reads
	dvb-usb: don't use stack for firmware load
	dvb-usb-firmware: don't do DMA on stack
	cxusb: Use a dma capable buffer also for reading
	virtio-console: avoid DMA from stack
	net: ipv6: check route protocol when deleting routes
	sctp: deny peeloff operation on asocs with threads sleeping on it
	Linux 4.9.24

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2017-04-21 09:48:33 +02:00
Tejun Heo
f44236a1b0 cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
commit 77f88796cee819b9c4562b0b6b44691b3b7755b1 upstream.

Creation of a kthread goes through a couple interlocked stages between
the kthread itself and its creator.  Once the new kthread starts
running, it initializes itself and wakes up the creator.  The creator
then can further configure the kthread and then let it start doing its
job by waking it up.

In this configuration-by-creator stage, the creator is the only one
that can wake it up but the kthread is visible to userland.  When
altering the kthread's attributes from userland is allowed, this is
fine; however, for cases where CPU affinity is critical,
kthread_bind() is used to first disable affinity changes from userland
and then set the affinity.  This also prevents the kthread from being
migrated into non-root cgroups as that can affect the CPU affinity and
many other things.

Unfortunately, the cgroup side of protection is racy.  While the
PF_NO_SETAFFINITY flag prevents further migrations, userland can win
the race before the creator sets the flag with kthread_bind() and put
the kthread in a non-root cgroup, which can lead to all sorts of
problems including incorrect CPU affinity and starvation.

This bug got triggered by userland which periodically tries to migrate
all processes in the root cpuset cgroup to a non-root one.  Per-cpu
workqueue workers got caught while being created and ended up with
incorrected CPU affinity breaking concurrency management and sometimes
stalling workqueue execution.

This patch adds task->no_cgroup_migration which disallows the task to
be migrated by userland.  kthreadd starts with the flag set making
every child kthread start in the root cgroup with migration
disallowed.  The flag is cleared after the kthread finishes
initialization by which time PF_NO_SETAFFINITY is set if the kthread
should stay in the root cgroup.

It'd be better to wait for the initialization instead of failing but I
couldn't think of a way of implementing that without adding either a
new PF flag, or sleeping and retrying from waiting side.  Even if
userland depends on changing cgroup membership of a kthread, it either
has to be synchronized with kthread_create() or periodically repeat,
so it's unlikely that this would break anything.

v2: Switch to a simpler implementation using a new task_struct bit
    field suggested by Oleg.

Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reported-and-debugged-by: Chris Mason <clm@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-21 09:31:18 +02:00
Vikram Mulukutla
8f013d0599 sched: Don't construct or check for energy-tables if !EAS
If the energy-aware scheduler isn't in use, don't attempt
to init the scheduler energy structures from DT, and don't
check them when rebuilding domains on hotplug-{in|out}.

Change-Id: I4f5dcc057191746e89548d1ea51443757776e159
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-04-13 10:54:45 -07:00
Vikram Mulukutla
4b54aae63a sched: cpufreq: HMP load reporting changes
Since HMP uses WALT, ensure that load is reported just once per window,
with the exception of intercluster migrations. Further, try to report load
whenever WALT stats are updated.

Change-Id: I6539f8c916f6f271cf26f03249de7f953d5b12c2
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2017-03-29 17:20:06 -07:00
Kyle Yan
90ed47f1fa Merge remote-tracking branch '4.9/tmp-47c0adf' into 4.9
* 4.9/tmp-47c0adf:
  Linux 4.9.15
  drivers: hv: Turn off write permission on the hypercall page
  fat: fix using uninitialized fields of fat_inode/fsinfo_inode
  mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
  thp: fix another corner case of munlock() vs. THPs
  x86/tlb: Fix tlb flushing when lguest clears PGE
  x86, mm: fix gup_pte_range() vs DAX mappings
  libceph: use BUG() instead of BUG_ON(1)
  drm/i915: Fix not finding the VBT when it overlaps with OPREGION_ASLE_EXT
  drm/i915: Avoid spurious WARNs about the wrong pipe in the PPS code
  drm: Cancel drm_fb_helper_resume_work on unload
  drm: Cancel drm_fb_helper_dirty_work on unload
  drm/i915/gvt: Disable access to stolen memory as a guest
  drm/atomic: fix an error code in mode_fixup()
  drm/imx: imx-tve: Do not set the regulator voltage
  dmaengine: imx-sdma - correct the dma transfer residue calculation
  drm/vmwgfx: Work around drm removal of control nodes
  drm/ttm: Make sure BOs being swapped out are cacheable
  drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
  drm/ast: Fix AST2400 POST failure without BMC FW or VBIOS
  drm/ast: Call open_key before enable_mmio in POST code
  drm/ast: Fix test for VGA enabled
  drm/amdgpu: add more cases to DCE11 possible crtc mask setup
  mac80211: use driver-indicated transmitter STA only for data frames
  mac80211: don't handle filtered frames within a BA session
  mac80211: don't reorder frames with SN smaller than SSN
  mac80211: flush delayed work when entering suspend
  nfit, libnvdimm: fix interleave set cookie calculation
  xtensa: move parse_tag_fdt out of #ifdef CONFIG_BLK_DEV_INITRD
  pwm: pca9685: Fix period change with same duty cycle
  nlm: Ensure callback code also checks that the files match
  drivers/pci/hotplug: Fix initial state for empty slot
  drivers/pci/hotplug: Handle presence detection change properly
  target: Fix NULL dereference during LUN lookup + active I/O shutdown
  pci/hotplug/pnv-php: Disable surprise hotplug capability on conflicts
  pci/hotplug/pnv-php: Remove WARN_ON() in pnv_php_put_slot()
  ceph: remove req from unsafe list when unregistering it
  ktest: Fix child exit code processing
  memory/atmel-ebi: Fix ns <-> cycles conversions
  orangefs: Use RCU for destroy_inode
  fs: Better permission checking for submounts
  IB/srp: Fix race conditions related to task management
  IB/srp: Avoid that duplicate responses trigger a kernel bug
  IB/SRP: Avoid using IB_MR_TYPE_SG_GAPS
  IB/mlx5: Fix out-of-bound access
  IB/IPoIB: Add destination address when re-queue packet
  IB/ipoib: Fix deadlock between rmmod and set_mode
  mnt: Tuck mounts under others instead of creating shadow/side mounts.
  brcmfmac: fix incorrect event channel deduction
  cxl: fix nested locking hang during EEH hotplug
  cxl: Prevent read/write to AFU config space while AFU not configured
  net: mvpp2: fix DMA address calculation in mvpp2_txq_inc_put()
  s390: use correct input data address for setup_randomness
  s390: make setup_randomness work
  s390: TASK_SIZE for kernel threads
  s390/chsc: Add exception handler for CHSC instruction
  s390/kdump: Use "LINUX" ELF note name instead of "CORE"
  s390/dcssblk: fix device size calculation in dcssblk_direct_access()
  s390/qdio: clear DSCI prior to scanning multiple input queues
  Bluetooth: Add another AR3012 04ca:3018 device
  KVM: VMX: use correct vmcs_read/write for guest segment selector/base
  KVM: s390: Disable dirty log retrieval for UCONTROL guests
  serial: 8250_pci: Add MKS Tenta SCOM-0800 and SCOM-0801 cards
  tty: n_hdlc: get rid of racy n_hdlc.tbuf
  uid_sys_stats: change to use rt_mutex
  ANDROID: uid_sys_stats: account for fsync syscalls
  ANDROID: sched: add a counter to track fsync
  ANDROID: uid_sys_stats: fix negative write bytes.
  ANDROID: uid_sys_stats: allow writing same state
  ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c
  ANDROID: uid_cputime: add per-uid IO usage accounting
  ANDROID: sched/walt: Fix missing locking in WALT port
  UPSTREAM: arm64: Allow hw watchpoint of length 3,5,6 and 7
  UPSTREAM: arm64: hw_breakpoint: Handle inexact watchpoint addresses
  UPSTREAM: arm64: Allow hw watchpoint at varied offset from base address
  UPSTREAM: hw_breakpoint: Allow watchpoint of length 3,5,6 and 7
  ANDROID: usb: gadget: f_accessory: Fix for UsbAccessory clean unbind.
  ANDROID: nf: IDLETIMER: Use fullsock when querying uid
  ANDROID: Replace spaces by '_' for some android filesystem tracepoints.

Conflicts:
	kernel/sched/core.c
	kernel/sched/fair.c

Change-Id: I31ee14ac15765dbb5fe53800d2c39224131287b0
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-03-15 13:38:21 -07:00
Jin Qian
e61abd81e1 ANDROID: sched: add a counter to track fsync
Change-Id: I6c138de5b2332eea70f57e098134d1d141247b3f
Signed-off-by: Jin Qian <jinqian@google.com>
2017-03-14 13:16:06 -07:00
Channagoud Kadabi
8810e5fa00 Merge remote-tracking branch 'origin/tmp-dcb6110' into 4.8
* origin/tmp-dcb6110:
  ANDROID: goldfish_sync: 32 max cmds to save stack
  ANDROID: sched/walt: use div_u64 instead of do_div
  Linux 4.9.9
  drm/i915/execlists: Reset RING registers upon resume
  fs: break out of iomap_file_buffered_write on fatal signals
  iw_cxgb4: set correct FetchBurstMax for QPs
  x86/irq: Make irq activate operations symmetric
  irqdomain: Avoid activating interrupts more than once
  iio: health: max30100: fixed parenthesis around FIFO count check
  iio: dht11: Use usleep_range instead of msleep for start signal
  iio: health: afe4403: retrieve a valid iio_dev in suspend/resume
  iio: health: afe4404: retrieve a valid iio_dev in suspend/resume
  iio: adc: palmas_gpadc: retrieve a valid iio_dev in suspend/resume
  staging: greybus: timesync: validate platform state callback
  USB: serial: option: add device ID for HP lt2523 (Novatel E371)
  usb: gadget: f_fs: Assorted buffer overflow checks.
  usb: musb: Fix host mode error -71 regression
  USB: Add quirk for WORLDE easykey.25 MIDI keyboard
  USB: serial: pl2303: add ATEN device ID
  USB: serial: qcserial: add Dell DW5570 QDL
  KVM: x86: do not save guest-unsupported XSAVE state
  dmaengine: cppi41: Fix oops in cppi41_runtime_resume
  dmaengine: cppi41: Fix runtime PM timeouts with USB mass storage
  perf/x86/intel/uncore: Clean up hotplug conversion fallout
  HID: wacom: Fix poor prox handling in 'wacom_pl_irq'
  HID: hid-lg: Fix immediate disconnection of Logitech Rumblepad 2
  HID: usbhid: Quirk a AMI virtual mouse and keyboard with ALWAYS_POLL
  iwlwifi: mvm: avoid crash on restart w/o reserved queues
  iwlwifi: fix double hyphen in MODULE_FIRMWARE for 8000
  pinctrl: intel: merrifield: Add missed check in mrfld_config_set()
  pinctrl: baytrail: Debounce register is one per community
  Revert "vring: Force use of DMA API for ARM-based systems with legacy devices"
  Revert "bcma: init serial console directly from ChipCommon code"
  percpu-refcount: fix reference leak during percpu-atomic transition
  regulator: axp20x: AXP806: Fix dcdcb being set instead of dcdce
  vhost: fix initialization for vq->is_le
  mmc: sdhci: Ignore unexpected CARD_INT interrupts
  cgroup: don't online subsystems before cgroup_name/path() are operational
  can: bcm: fix hrtimer/tasklet termination in bcm op removal
  tracing: Fix hwlat kthread migration
  mm, fs: check for fatal signals in do_generic_file_read()
  base/memory, hotplug: fix a kernel oops in show_valid_zones()
  mm/memory_hotplug.c: check start_pfn in test_pages_in_a_zone()
  cifs: initialize file_info_lock
  zswap: disable changing params if init fails
  svcrpc: fix oops in absence of krb5 module
  NFSD: Fix a null reference case in find_or_create_lock_stateid()
  powerpc/mm: Use the correct pointer when setting a 2MB pte
  powerpc: Fix build failure with clang due to BUILD_BUG_ON()
  powerpc: Add missing error check to prom_find_boot_cpu()
  powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe()
  libata: Fix ATA request sense
  libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices
  ata: sata_mv:- Handle return value of devm_ioremap.
  perf/core: Fix PERF_RECORD_MMAP2 prot/flags for anonymous memory
  perf/core: Fix use-after-free bug
  crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
  crypto: api - Clear CRYPTO_ALG_DEAD bit before registering an alg
  drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval
  drm/nouveau/disp/gt215: Fix HDA ELD handling (thus, HDMI audio) on gt215
  drm/amdgpu/si: fix crash on headless asics
  pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler
  HID: cp2112: fix gpio-callback error handling
  HID: cp2112: fix sleep-while-atomic
  xtensa: fix noMMU build on cores with MMU
  efi/fdt: Avoid FDT manipulation after ExitBootServices()
  x86/efi: Always map the first physical page into the EFI pagetables
  ext4: validate s_first_meta_bg at mount time
  PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
  ANDROID: sched: Add Kconfig option DEFAULT_USE_ENERGY_AWARE to set ENERGY_AWARE feature flag
  ANDROID: goldfish_sync: Fix sync_file_obj is NULL but dereferenced problem
  ANDROID: goldfish_sync: Isolate single module to fix compilation
  ANDROID: goldfish_sync: update defconfig for 4.9-compatible version
  ANDROID: goldfish_sync: upgrade to new fence sync api
  Linux 4.9.8
  xfs: fix bmv_count confusion w/ shared extents
  xfs: clear _XBF_PAGES from buffers when readahead page
  xfs: extsize hints are not unlikely in xfs_bmap_btalloc
  xfs: remove racy hasattr check from attr ops
  xfs: verify dirblocklog correctly
  xfs: fix COW writeback race
  xfs: fix xfs_mode_to_ftype() prototype
  xfs: don't wrap ID in xfs_dq_get_next_id
  xfs: sanity check inode di_mode
  xfs: sanity check inode mode when creating new dentry
  xfs: replace xfs_mode_to_ftype table with switch statement
  xfs: add missing include dependencies to xfs_dir2.h
  xfs: sanity check directory inode di_size
  xfs: make the ASSERT() condition likely
  xfs: don't print warnings when xfs_log_force fails
  xfs: don't rely on ->total in xfs_alloc_space_available
  xfs: adjust allocation length in xfs_alloc_space_available
  xfs: fix bogus minleft manipulations
  xfs: bump up reserved blocks in xfs_alloc_set_aside
  net: dsa: Bring back device detaching in dsa_slave_suspend()
  lwtunnel: Fix oops on state free after encap module unload
  net: Specify the owning module for lwtunnel ops
  qmi_wwan/cdc_ether: add device ID for HP lt2523 (Novatel E371) WWAN card
  af_unix: move unix_mknod() out of bindlock
  r8152: don't execute runtime suspend if the tx is not empty
  net: mpls: Fix multipath selection for LSR use case
  bridge: netlink: call br_changelink() during br_dev_newlink()
  net/mlx5e: Do not recycle pages from emergency reserve
  tcp: initialize max window for a new fastopen socket
  ipv6: addrconf: Avoid addrconf_disable_change() using RCU read-side lock
  lwtunnel: fix autoload of lwt modules
  net: phy: bcm63xx: Utilize correct config_intr function
  net: fix harmonize_features() vs NETIF_F_HIGHDMA
  vxlan: fix byte order of vxlan-gpe port number
  virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receiving
  virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on xmit
  net sched actions: fix refcnt when GETing of action after bind
  ax25: Fix segfault after sock connection timeout
  ip6_tunnel: Account for tunnel header in tunnel MTU
  ravb: do not use zero-length alignment DMA descriptor
  mlx4: do not call napi_schedule() without care
  openvswitch: maintain correct checksum state in conntrack actions
  tcp: fix tcp_fastopen unaligned access complaints on sparc
  net: systemport: Decouple flow control from __bcm_sysport_tx_reclaim
  net: ipv4: fix table id in getroute response
  net: lwtunnel: Handle lwtunnel_fill_encap failure
  mlxsw: pci: Fix EQE structure definition
  mlxsw: switchx2: Fix memory leak at skb reallocation
  mlxsw: spectrum: Fix memory leak at skb reallocation
  netvsc: add rcu_read locking to netvsc callback
  r8152: fix the sw rx checksum is unavailable
  FROMLIST: 9p: fix a potential acl leak
  ANDROID: sched/walt: use do_div instead of division operator
  ANDROID: sched: fix wrong truncation of walt_avg
  ANDROID: arm: Fix #if/#ifdef typo in topology.c
  ANDROID: arm: Fix build error "conflicting types for 'scale_cpu_capacity'"
  ANDROID: net: ipv6: remove unused variable ifindex in
  ANDROID: DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems
  ANDROID: arm: topology: Define TC2 energy and provide it to the scheduler
  ANDROID: binder: fix format specifier for type binder_size_t
  Linux 4.9.7
  drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround.
  perf/core: Fix concurrent sys_perf_event_open() vs. 'move_group' race
  mm, memcg: do not retry precharge charges
  platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT
  platform/x86: mlx-platform: free first dev on error
  virtio_mmio: Set DMA masks appropriately
  memory_hotplug: make zone_can_shift() return a boolean value
  pinctrl: baytrail: Rectify debounce support
  pinctrl: uniphier: fix Ethernet (RMII) pin-mux setting for LD20
  pinctrl: broxton: Use correct PADCFGLOCK offset
  s5k4ecgx: select CRC32 helper
  IB/rxe: Prevent from completer to operate on non valid QP
  IB/rxe: Fix rxe dev insertion to rxe_dev_list
  IB/umem: Release pid in error and ODP flow
  drm/i915: Check for NULL atomic state in intel_crtc_disable_noatomic()
  drm/i915: Fix calculation of rotated x and y offsets for planar formats
  drm/i915: Don't init hpd polling for vlv and chv from runtime_suspend()
  drm/i915: Don't leak edid in intel_crt_detect_ddc()
  drm/i915: prevent crash with .disable_display parameter
  drm/i915: Clear ret before unbinding in i915_gem_evict_something()
  v4l: tvp5150: Don't override output pinmuxing at stream on/off time
  v4l: tvp5150: Fix comment regarding output pin muxing
  v4l: tvp5150: Reset device at probe time, not in get/set format handlers
  pctv452e: move buffer to heap, no mutex
  iw_cxgb4: free EQ queue memory on last deref
  SUNRPC: cleanup ida information when removing sunrpc module
  NFSv4.0: always send mode in SETATTR after EXCLUSIVE4
  NFSv4.1: Fix a deadlock in layoutget
  nfs: Don't increment lock sequence ID after NFS4ERR_MOVED
  parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
  ARC: [arcompact] handle unaligned access delay slot corner case
  ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list
  can: ti_hecc: add missing prepare and unprepare of the clock
  can: c_can_pci: fix null-pointer-deref in c_can_start() - set device pointer
  IB/srp: fix invalid indirect_sg_entries parameter value
  IB/srp: fix mr allocation when the device supports sg gaps
  IB/iser: Fix sg_tablesize calculation
  IB/cxgb3: fix misspelling in header guard
  s390/ptrace: Preserve previous registers for short regset write
  s390/mm: Fix cmma unused transfer from pgste into pte
  RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
  Btrfs: remove ->{get, set}_acl() from btrfs_dir_ro_inode_operations
  Btrfs: disable xattr operations on subvolume directories
  Btrfs: remove old tree_root case in btrfs_read_locked_inode()
  ISDN: eicon: silence misleading array-bounds warning
  xfs: prevent quotacheck from overloading inode lru
  sysctl: fix proc_doulongvec_ms_jiffies_minmax()
  userns: Make ucounts lock irq-safe
  vring: Force use of DMA API for ARM-based systems with legacy devices
  mm, page_alloc: fix premature OOM when racing with cpuset mems update
  mm, page_alloc: move cpuset seqcount checking to slowpath
  mm, page_alloc: fix fast-path race with cpuset update or removal
  mm, page_alloc: fix check for NULL preferred_zone
  mm/mempolicy.c: do not put mempolicy before using its nodemask
  mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp
  drm/atomic: clear out fence when duplicating state
  Revert "drm/radeon: always apply pci shutdown callbacks"
  drm/vc4: fix a bounds check
  drm/vc4: Return -EINVAL on the overflow checks failing.
  drm/vc4: Fix an integer overflow in temporary allocation layout.
  drm/vc4: Fix memory leak of the CRTC state.
  drm/i915: Ignore bogus plane coordinates on SKL when the plane is not visible
  drm: Fix broken VT switch with video=1366x768 option
  drm: Schedule the output_poll_work with 1s delay if we have delayed event
  tile/ptrace: Preserve previous registers for short regset write
  fbdev: color map copying bounds checking
  ANDROID: sched/walt: Drop arch-specific timer access
  ANDROID: sched/walt: include missing header for arm_timer_read_counter()
  ANDROID: fs: Export vfs_rmdir2
  ANDROID: fs: Export free_fs_struct and set_fs_pwd
  ANDROID: cpufreq: interactive: Use idle-end notifiers
  FROMLIST: cpufreq: Add android's 'interactive' governor
  ANDROID: cpufreq: conservative: fix duplicate 'static' error
  ANDROID: sdcardfs: eliminate the offset argument to ->direct_IO
  ANDROID: sdcardfs: make it use new .rename i_op
  ANDROID: sdcardfs: Propagate dentry down to inode_change_ok()
  ANDROID: sdcardfs: get rid of 'parent' argument of ->d_compare()
  ANDROID: sdcardfs: add parent pointer into dentry name hash
  ANDROID: sdcardfs: use wrappers to access i_mutex
  ANDROID: mnt: remount should propagate to slaves of slaves
  ANDROID: sdcardfs: Fix locking issue with permision fix up
  ANDROID: sdcardfs: Switch ->d_inode to d_inode()
  ANDROID: sdcardfs: Change magic value
  ANDROID: sdcardfs: Use per mount permissions
  ANDROID: sdcardfs: Add gid and mask to private mount data
  ANDROID: sdcardfs: User new permission2 functions
  ANDROID: vfs: Add permission2 for filesystems with per mount permissions
  ANDROID: vfs: Add setattr2 for filesystems with per mount permissions
  ANDROID: vfs: Allow filesystems to access their private mount data
  ANDROID: mnt: Add filesystem private data to mount points
  ANDROID: sdcardfs: Move directory unlock before touch
  ANDROID: sdcardfs: fix external storage exporting incorrect uid
  ANDROID: sdcardfs: Added top to sdcardfs_inode_info
  ANDROID: sdcardfs: Switch package list to RCU
  ANDROID: sdcardfs: Fix locking for permission fix up
  ANDROID: sdcardfs: Check for other cases on path lookup
  ANDROID: sdcardfs: override umask on mkdir and create
  ANDROID: sched/debug: Add energy procfs interface
  ANDROID: cpufreq: sched: Fix kernel crash on accessing sysfs file
  ANDROID: FIXUP: sched/tune: add fixes missing from a previous patch
  ANDROID: sched: tune: Fix lacking spinlock initialization
  ANDROID: cgroup: Remove leftover instances of allow_attach
  ANDROID: FIXUP: sched: scheduler-driven cpu frequency selection
  ANDROID: sched/rt: Add Kconfig option to enable panicking for RT throttling
  ANDROID: sched/rt: print RT tasks when RT throttling is activated
  ANDROID: sched/fair: Favor higher cpus only for boosted tasks
  ANDROID: sched/fair: call OPP update when going idle after migration
  ANDROID: sched/cpufreq_sched: fix thermal capping events
  ANDROID: sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs
  ANDROID: FIXUP: sched/tune: do initialization as a postcore_initicall
  ANDROID: DEBUG: sched: add tracepoint for RD overutilized
  ANDROID: sched/tune: Introducing a new schedtune attribute prefer_idle
  ANDROID: sched: use util instead of capacity to select busy cpu
  ANDROID: arch_timer: add error handling when the MPM global timer is cleared
  ANDROID: FIXUP: sched: Fix double-release of spinlock in move_queued_task
  ANDROID: FIXUP: sched/fair: Fix hang during suspend in sched_group_energy
  ANDROID: FIXUP: sched: fix SchedFreq integration for both PELT and WALT
  ANDROID: sched: EAS: Avoid causing spikes to max-freq unnecessarily
  ANDROID: FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use
  ANDROID: sched/walt: Accounting for number of irqs pending on each core
  ANDROID: sched: Introduce Window Assisted Load Tracking (WALT)
  ANDROID: sched/tune: fix PB and PC cuts indexes definition
  ANDROID: sched/fair: optimize idle cpu selection for boosted tasks
  ANDROID: FIXUP: sched/tune: fix accounting for runnable tasks
  ANDROID: sched/tune: use a single initialisation function
  ANDROID: FIXUP: sched/tune: fix payoff calculation for boost region
  ANDROID: sched/tune: Add support for negative boost values
  ANDROID: FIX: sched/tune: move schedtune_nornalize_energy into fair.c
  ANDROID: FIX: sched/tune: update usage of boosted task utilisation on CPU selection
  ANDROID: sched/fair: add tunable to set initial task load
  ANDROID: sched/fair: add tunable to force selection at cpu granularity
  ANDROID: sched: EAS: take cstate into account when selecting idle core
  ANDROID: sched/cpufreq_sched: Consolidated update
  ANDROID: FIXUP: sched: fix build for non-SMP target
  ANDROID: DEBUG: sched/tune: add tracepoint on P-E space filtering
  ANDROID: DEBUG: sched/tune: add tracepoint for energy_diff() values
  ANDROID: DEBUG: sched/tune: add tracepoint for task boost signal
  CHROMIUM: sched: update the average of nr_running
  ANDROID: DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
  ANDROID: DEBUG: schedtune: add tracepoint for CPU boost signal
  ANDROID: DEBUG: schedtune: add tracepoint for SchedTune configuration update
  ANDROID: DEBUG: sched,cpufreq: add cpu_capacity change tracepoint
  ANDROID: DEBUG: sched: add tracepoint for CPU load/util signals
  ANDROID: DEBUG: sched: add tracepoint for task load/util signals
  ANDROID: DEBUG: sched: add tracepoint for cpu/freq scale invariance
  ANDROID: sched/fair: filter energy_diff() based on energy_payoff value
  ANDROID: sched/tune: add support to compute normalized energy
  ANDROID: sched/fair: keep track of energy/capacity variations
  ANDROID: sched/fair: add boosted task utilization
  ANDROID: sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value
  ANDROID: sched/tune: compute and keep track of per CPU boost value
  ANDROID: sched/tune: add initial support for CGroups based boosting
  ANDROID: sched/fair: add boosted CPU usage
  ANDROID: sched/fair: add function to convert boost value into "margin"
  ANDROID: sched/tune: add sysctl interface to define a boost value
  ANDROID: sched/tune: add detailed documentation
  ANDROID: fixup! sched: scheduler-driven cpu frequency selection
  ANDROID: sched: remove call of sched_avg_update from sched_rt_avg_update
  ANDROID: sched/cpufreq_sched: add trace events
  ANDROID: sched/fair: jump to max OPP when crossing UP threshold
  ANDROID: sched/fair: cpufreq_sched triggers for load balancing
  ANDROID: sched/{core,fair}: trigger OPP change request on fork()
  ANDROID: sched/fair: add triggers for OPP change requests
  ANDROID: sched: scheduler-driven cpu frequency selection
  ANDROID: cpufreq: introduce cpufreq_driver_is_slow
  ANDROID: sched: Add group_misfit_task load-balance type
  ANDROID: sched: Add per-cpu max capacity to sched_group_capacity
  ANDROID: sched: Do eas idle balance regardless of the rq avg idle value
  ANDROID: arm64: Enable max freq invariant scheduler load-tracking and capacity support
  ANDROID: arm: Enable max freq invariant scheduler load-tracking and capacity support
  ANDROID: sched: Update max cpu capacity in case of max frequency constraints
  ANDROID: cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support
  ANDROID: sched: Disable energy-unfriendly nohz kicks
  ANDROID: sched: Consider a not over-utilized energy-aware system as balanced
  ANDROID: sched: Energy-aware wake-up task placement
  ANDROID: sched: Determine the current sched_group idle-state
  ANDROID: sched, cpuidle: Track cpuidle state index in the scheduler
  ANDROID: sched: Add over-utilization/tipping point indicator
  ANDROID: sched: Estimate energy impact of scheduling decisions
  ANDROID: sched: Extend sched_group_energy to test load-balancing decisions
  ANDROID: sched: Calculate energy consumption of sched_group
  ANDROID: sched: Highest energy aware balancing sched_domain level pointer
  ANDROID: sched: Relocated cpu_util() and change return type
  ANDROID: sched: Compute cpu capacity available at current frequency
  ANDROID: sched: Support for extracting EAS energy costs from DT
  ANDROID: arm64, topology: Updates to use DT bindings for EAS costing data
  ANDROID: arm64: Cpu invariant scheduler load-tracking and capacity support
  ANDROID: arm: Cpu invariant scheduler load-tracking and capacity support
  ANDROID: sched: Introduce SD_SHARE_CAP_STATES sched_domain flag
  ANDROID: sched: Initialize energy data structures
  ANDROID: sched: Make energy awareness a sched feature
  ANDROID: sched: Documentation for scheduler energy cost model
  ANDROID: sched: Prevent unnecessary active balance of single task in sched group
  ANDROID: sched: Enable idle balance to pull single task towards cpu with higher capacity
  ANDROID: sched: Consider spare cpu capacity at task wake-up
  ANDROID: sched: Add cpu capacity awareness to wakeup balancing
  ANDROID: arm: Update arch_scale_cpu_capacity() to reflect change to define
  ANDROID: arm64: Enable frequency invariant scheduler load-tracking support
  ANDROID: arm: Enable frequency invariant scheduler load-tracking support
  ANDROID: cpufreq: Frequency invariant scheduler load-tracking support
  ANDROID: [CPUFREQ] Don't export governors for default governor
  ANDROID: kernel/configs: recommended: CONFIG_ARM64_SW_TTBR0_PAN=y
  ANDROID: kernel/configs: base: Enable QUOTA related configs
  ANDROID: kernel/configs: recommended: Enable MEMORY_STATE_TIME
  FROMLIST: config: android-base: enable hardened usercopy and kernel ASLR
  FROMLIST: config: android-recommended: disable aio support
  ANDROID: kernel/configs: recommended: enable fstack-protector-strong
  ANDROID: kernel/configs: base: enable UID_CPUTIME
  ANDROID: kernel/configs: base: restrict access to perf events
  ANDROID: configs: base: enable configfs gadget functions
  ANDROID: configs: merge AOSP config fragments
  ANDROID: Implement memory_state_time, used by qcom,cpubw
  ANDROID: dm: rebase for 4.9
  ANDROID: usb: otg-wakelock: Remove wakelock.h dependencies
  ANDROID: gpio_matrix: Remove wakelock.h dependencies
  ANDROID: fiq_debugger: Remove wakelock.h dependencies
  UPSTREAM: net: socket: don't set sk_uid to garbage value in ->setattr()
  ANDROID: trace: net: use %pK for kernel pointers
  UPSTREAM: net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu.
  UPSTREAM: net: inet: Support UID-based routing in IP protocols.
  UPSTREAM: net: core: add UID to flows, rules, and routes
  UPSTREAM: net: core: Add a UID field to struct sock.
  ANDROID: fs: FS tracepoints to track IO.
  ANDROID: MMC/UFS IO Latency Histograms.
  CHROMIUM: fix warning when releasing active sync point
  ANDROID: goldfish_pipe: fix allmodconfig build
  ANDROID: goldfish: goldfish_pipe: fix locking errors
  ANDROID: goldfish_pipe: fix call_kern.cocci warnings
  ANDROID: goldfish_pipe: An implementation of more parallel pipe
  ANDROID: goldfish_pipe: bugfixes and performance improvements.
  ANDROID: goldfish: disable GOLDFISH_SYNC
  ANDROID: goldfish: enable CONFIG_INET_DIAG_DESTROY
  ANDROID: build: fix build config kernel_dir
  ANDROID: dm verity: add minimum prefetch size
  ANDROID: build: add build server configs for goldfish
  UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock
  UPSTREAM: trace: Add an option for boot clock as trace clock
  UPSTREAM: timekeeping: Add a fast and NMI safe boot clock
  ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings
  ANDROID: arm64: rename ranchu defconfig to ranchu64
  ANDROID: arch: x86: disable pic for Android toolchain
  ANDROID: goldfish: Add goldfish sync driver
  ANDROID: goldfish: add ranchu defconfigs
  ANDROID: goldfish_audio: Clear audio read buffer status after each read
  ANDROID: goldfish_events: no extra EV_SYN; register goldfish
  ANDROID: goldfish_fb: Set pixclock = 0
  ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio
  ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer
  ANDROID: video: goldfishfb: add devicetree bindings
  ANDROID: usb: gadget: function: cleanup: Add blank line after declaration
  ANDROID: usb: gadget: f_mtp: simplify ptp NULL pointer check
  ANDROID: usb: gadget: audio_source: fix comparison of distinct pointer types
  ANDROID: binder: support for file-descriptor arrays.
  ANDROID: binder: support for scatter-gather.
  ANDROID: binder: add extra size to allocator.
  ANDROID: binder: refactor binder_transact()
  ANDROID: binder: support multiple /dev instances.
  ANDROID: binder: deal with contexts in debugfs.
  ANDROID: binder: support multiple context managers.
  ANDROID: binder: split flat_binder_object.
  ANDROID: [RFC]cgroup: Change from CAP_SYS_NICE to CAP_SYS_RESOURCE for cgroup migration permissions
  CHROMIUM: cgroups: relax permissions on moving tasks between cgroups
  ANDROID: dm: android-verity: Remove fec_header location constraint
  ANDROID: fiq_debugger: Pass task parameter to unwind_frame()
  ANDROID: input: keyreset: switch to orderly_reboot
  ANDROID: cpuset: Make cpusets restore on hotplug
  ANDROID: Don't show empty tag stats for unprivileged uids
  ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module
  ANDROID: dm-verity: adopt changes made to dm callbacks
  ANDROID: dm verity fec: pack the fec_header structure
  ANDROID: dm: android-verity: Verify header before fetching table
  ANDROID: dm: allow adb disable-verity only in userdebug
  ANDROID: dm: mount as linear target if eng build
  ANDROID: dm: use default verity public key
  ANDROID: dm: fix signature verification flag
  ANDROID: dm: use name_to_dev_t
  ANDROID: dm: rename dm-linear methods for dm-android-verity
  ANDROID: dm: Minor cleanup
  ANDROID: dm: Mounting root as linear device when verity disabled
  ANDROID: dm-android-verity: Rebase on top of 4.1
  ANDROID: dm: Add android verity target
  ANDROID: dm: fix dm_substitute_devices()
  ANDROID: dm: Rebase on top of 4.9
  CHROMIUM: dm: boot time specification of dm=
  ANDROID: usb: gadget: f_accessory: remove duplicate endpoint alloc
  ANDROID: sdcardfs: fix itnull.cocci warnings
  ANDROID: sdcardfs: Truncate packages_gid.list on overflow
  ANDROID: netfilter: xt_quota2: make quota2_log work well
  ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus
  ANDROID: dm verity fec: initialize recursion level
  ANDROID: dm verity fec: add missing release from fec_ktype
  ANDROID: dm verity fec: limit error correction recursion
  FROMLIST: security,perf: Allow further restriction of perf_event_open
  ANDROID: ARM64: Ignore Image-dtb from git point of view
  ANDROID: arm64: add option to build Image-dtb
  ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function
  ANDROID: xt_qtaguid: Fix panic caused by processing non-full socket.
  ANDROID: fiq_debugger: Add fiq_debugger.disable option
  FROMLIST: wlcore: Disable filtering in AP role
  ANDROID: fiq_debugger: Add option to apply uart overlay by FIQ_DEBUGGER_UART_OVERLAY
  ANDROID: usb: dual-role: make stub functions inline
  ANDROID: quick selinux support for tracefs
  ANDROID: xt_qtaguid: Fix panic caused by synack processing
  ANDROID: fuse: Add support for d_canonical_path
  ANDROID: vfs: change d_canonical_path to take two paths
  ANDROID: netfilter: xt_qtaguid: seq_printf fixes
  ANDROID: mmc: Add CONFIG_MMC_SIMULATE_MAX_SPEED
  ANDROID: dm verity fec: add sysfs attribute fec/corrected
  ANDROID: mm: Export do_munmap
  ANDROID: sdcardfs: remove unneeded __init and __exit
  ANDROID: sdcardfs: Remove unused code
  ANDROID: fs: Export d_absolute_path
  ANDROID: sdcardfs: remove effectless config option
  ANDROID: inotify: Fix erroneous update of bit count
  ANDROID: fs: sdcardfs: Declare LOOKUP_CASE_INSENSITIVE unconditionally
  ANDROID: trace: cpufreq: fix typo in min/max cpufreq
  ANDROID: sdcardfs: Add support for d_canonical_path
  ANDROID: vfs: add d_canonical_path for stacked filesystem support
  ANDROID: sdcardfs: Bring up to date with Android M permissions:
  ANDROID: Changed type-casting in packagelist management
  ANDROID: Port of sdcardfs to 4.4
  ANDROID: Included sdcardfs source code for kernel 3.0
  ANDROID: usb: gadget: Add support for MTP OS desc
  CHROMIUM: usb: gadget: f_accessory: add .raw_request callback
  CHROMIUM: usb: gadget: audio_source: add .free_func callback
  CHROMIUM: usb: gadget: f_mtp: fix usb_ss_ep_comp_descriptor
  CHROMIUM: usb: gadget: f_mtp: Add SuperSpeed support
  ANDROID: dm-crypt: run in a WQ_HIGHPRI workqueue
  ANDROID: power: Provide dummy log_suspend_abort_reason() if SUSPEND is disabled
  ANDROID: PM / suspend: Add dependency on RTC_LIB
  ANDROID: net: pppolac/pppopns: Replace msg.msg_iov with iov_iter_kvec()
  ANDROID: mmc: sdio: Disable retuning in sdio_reset_comm()
  ANDROID: kernel/watchdog: fix unused variable warning
  ANDROID: usb: gadget: f_mtp: don't use le16 for u8 field
  ANDROID: lowmemorykiller: fix declaration order warnings
  ANDROID: mmc: move to a SCHED_FIFO thread
  ANDROID: skip building drivers as modules
  ANDROID: wakeup: Add the guard condition for len in pm_get_active_wakeup_sources
  ANDROID: goldfish: pipe: fix platform_no_drv_owner.cocci warnings
  ANDROID: epoll: use freezable blocking call
  ANDROID: Fix for in kernel emergency remount when loop mounts are used
  ANDROID: kbuild: Makefile.clean: make Kbuild and Makefile optional
  ANDROID: kbuild: make it possible to specify the module output dir
  ANDROID: ext4: Add support for FIDTRIM, a best-effort ioctl for deep discard trim
  ANDROID: hardlockup: detect hard lockups without NMIs using secondary cpus
  ANDROID: rtc-palmas: correct for bcd year
  ANDROID: w1: ds2482: Manage SLPZ pin sleep state
  ANDROID: fuse: Freeze client on suspend when request sent to userspace
  ANDROID: serial_core: Add wake_peer uart operation
  ANDROID: mm: add a field to store names for private anonymous memory
  ANDROID: pstore/ram: Add ramoops_console_write_buf api
  ANDROID: pstore: Update Documentation/android.txt
  ANDROID: initramfs: Add skip_initramfs command line option
  ANDROID: of: Fix build warnings
  ANDROID: of: fix CONFIG_CMDLINE_EXTEND
  ANDROID: ARM64: copy CONFIG_CMDLINE_EXTEND from ARM
  ANDROID: of: Support CONFIG_CMDLINE_EXTEND config option
  ANDROID: ARM: decompressor: Flush tlb before swiching domain 0 to client mode
  ANDROID: ARM64: add option to build Image.gz/dtb combo
  ANDROID: ARM: convert build of appended dtb zImage to list of dtbs
  ANDROID: ARM: add config option to build zImage/dtb combo
  ANDROID: ARM: Fix dtb list when DTB_IMAGE_NAMES is empty
  ANDROID: arm64: pass return address to dma_common_contiguous_remap
  ANDROID: arch: arm64: force -fno-pic
  ANDROID: arm64: process: dump memory around registers when displaying regs
  ANDROID: arm64: check for upper PAGE_SHIFT bits in pfn_valid()
  ANDROID: ARM: fault: assume no context when IRQs are disabled during data abort.
  ANDROID: ARM: Fix "Make low-level printk work" to use a separate config option
  ANDROID: ARM: add option to flush console before reboot
  ANDROID: ARM: Make low-level printk work
  ANDROID: Optionally flush entire dcache from v6_dma_flush_range
  ANDROID: process: Add display of memory around registers when displaying regs.
  ANDROID: security: Add proper checks for Android specific capability checks
  ANDROID: uid_cputime: skip power reporting per uid for now
  ANDROID: uid_cputime: Check for the range while removing range of UIDs.
  ANDROID: uid_cputime: Iterates over all the threads instead of processes.
  ANDROID: uid_cputime: fix cputime overflow
  ANDROID: uid_cputime: Avoids double accounting of process stime, utime and cpu_power in task exit.
  ANDROID: uid_cputime: Extends the cputime functionality to report power per uid
  ANDROID: proc: uid_cputime: fix show_uid_stat permission
  ANDROID: proc: uid_cputime: create uids from kuids
  ANDROID: proc: uid: Adds accounting for the cputimes per uid.
  ANDROID: fixup! proc: make oom adjustment files user read-only
  ANDROID: proc: make oom adjustment files user read-only
  ANDROID: proc: smaps: Allow smaps access for CAP_SYS_RESOURCE
  ANDROID: wakeup_reason: use vsnprintf instead of snsprintf for vargs.
  ANDROID: power: wakeup_reason: fix suspend time reporting
  ANDROID: wakeup: Add last wake up source logging for suspend abort reason.
  ANDROID: Power: Report suspend times from last_suspend_time
  ANDROID: Make suspend abort reason logging depend on CONFIG_PM_SLEEP
  ANDROID: power: Add check_wakeup_reason() to verify wakeup source irq
  ANDROID: power: Adds functionality to log the last suspend abort reason.
  ANDROID: power: Avoids bogus error messages for the suspend aborts.
  ANDROID: power: Add property CHARGE_COUNTER_EXT and 64-bit precision properties
  ANDROID: Power: Changes the permission to read only for sysfs file /sys/kernel/wakeup_reasons/last_resume_reason
  ANDROID: power: wakeup_reason: rename irq_count to irqcount
  ANDROID: Power: Add guard condition for maximum wakeup reasons
  ANDROID: POWER: fix compile warnings in log_wakeup_reason
  ANDROID: Power: add an API to log wakeup reasons
  ANDROID: PM / Suspend: Print wall time at suspend entry and exit
  ANDROID: power: power_supply: add POWER_SUPPLY_PROP_CHARGE_ENABLED
  ANDROID: power: power_supply: add POWER_SUPPLY_PROP_USB_OTG
  ANDROID: power: power_supply: move POWER_SUPPLY_PROP_USB_HC to type 'int' order
  ANDROID: power_supply: Add custom property for USB High Current mode
  ANDROID: trace: power: add trace_clock_set_parent
  ANDROID: trace: cpufreq: Add tracing for min/max cpufreq
  ANDROID: trace: fix compilation for 4.1
  ANDROID: trace/events: fix gpu event timestamp formatting
  ANDROID: trace: add non-hierarchical function_graph option
  ANDROID: trace: Add an option to show tgids in trace output
  ANDROID: trace/events: add gpu trace events
  ANDROID: sync: add Documentation/sync.txt
  ANDROID: ARM: Call idle notifiers
  ANDROID: Move x86_64 idle notifiers to generic
  ANDROID: cpuidle: governor: menu: don't use loadavg
  ANDROID: sched: add sched blocked tracepoint which dumps out context of sleep.
  ANDROID: sched: Enable might_sleep before initializing drivers.
  ANDROID: fiq_debugger: Build fixes for 4.1
  ANDROID: fiq_debugger: Add fiq_watchdog_triggered api
  ANDROID: fiq_debugger: Call fiq_debugger_printf through a function pointer from cpu specific code
  ANDROID: fiq_debugger: add ARM64 support
  ANDROID: fiq_debugger: split arm support into fiq_debugger_arm.c
  ANDROID: fiq_debugger: use pt_regs for registers
  ANDROID: fiq_debugger: allow compiling without CONFIG_FIQ_GLUE
  ANDROID: fiq_debugger: rename debug->fiq_debugger
  ANDROID: fiq_debugger: move into drivers/staging/android/fiq_debugger/
  ANDROID: ARM: fiq_glue: Add custom fiq return handler api.
  ANDROID: ARM: kgdb: ignore breakpoint instructions from user mode
  ANDROID: ARM: fiq_debugger: Update tty code for 3.9
  ANDROID: ARM: fiq_debugger: Use kmsg_dumper to dump kernel logs
  ANDROID: ARM: fiq_debugger: Fix to compile on 3.7
  ANDROID: ARM: fiq_debugger: fix uninitialised spin_lock.
  ANDROID: ARM: fiq_debugger: lock between tty and console writes
  ANDROID: ARM: fiq_debugger: add process context reboot command
  ANDROID: ARM: fiq_debugger: fix multiple consoles and make it a preferred console
  ANDROID: kdb: support new lines without carriage returns
  ANDROID: ARM: fiq_debugger: add support for kgdb
  ANDROID: ARM: fiq_debugger: add debug_putc
  ANDROID: ARM: fiq_debugger: add support for reboot commands
  ANDROID: ARM: fiq_debugger: fix compiling for v3.3
  ANDROID: ARM: Add generic fiq serial debugger
  ANDROID: ARM: Add fiq_glue
  ANDROID: fix false disconnect due to a signal sent to the reading process
  ANDROID: usb: gadget: cleanup: fix unused variable and function warnings
  ANDROID: usb: gadget: build audio_source function only if SND is enabled
  ANDROID: usb: gadget: configfs: handle gadget reset request for android
  ANDROID: usb: gadget: create F_midi device
  ANDROID: usb: gadget: Add device attribute to determine gadget state
  ANDROID: usb: phy: fix dual role sysfs build if kernel modules are supported
  ANDROID: usb: phy: Dual role sysfs class definition
  ANDROID: usb: gadget: fix NULL ptr derefer while symlinking PTP func
  ANDROID: usb:gadget:Add "state" attribute to android_device
  ANDROID: usb: gadget: Do not disconnect unregistered dev
  ANDROID: usb: gadget: Relocate f_accessory
  ANDROID: usb: gadget: Accessory:Migrate to USB_FUNCTION API
  ANDROID: usb: gadget: Move gadget functions code
  ANDROID: usb:gadget:audio_source: Move to USB_FUNCTION API
  ANDROID: usb: gadget: Add function devices to the parent
  ANDROID: usb: gadget: f_audio_source:replace deprecated API
  ANDROID: usb: gadget: check for accessory device before disconnecting HIDs
  ANDROID: usb: gadget: Add Uevent to notify userspace
  ANDROID: usb: gadget: configfs: Add usb_function ptr to fi struct
  ANDROID: usb: gadget: mtp/ptp: Migrate functions to the USB_FUNCTION interface
  Linux 4.9.6
  libceph: stop allocating a new cipher on every crypto request
  libceph: uninline ceph_crypto_key_destroy()
  tools/virtio/ringtest: fix run-on-all.sh for offline cpus
  selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
  soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()
  spi: pxa2xx: add missed break
  dmaengine: pl330: Fix runtime PM support for terminated transfers
  dmaengine: rcar-dmac: unmap slave resource when channel is freed
  s5p-mfc: Fix clock management in s5p_mfc_release() function
  s5p-cec: mark PM functions as __maybe_unused again
  st-hva: fix some error handling in hva_hw_probe()
  ite-cir: initialize use_demodulator before using it
  gs1662: drop kfree for memory allocated with devm_kzalloc
  platform: pxa_camera: add VIDEO_V4L2 dependency
  blackfin: check devm_pinctrl_get() for errors
  rpmsg: virtio_rpmsg_bus: fix channel creation
  mtd: spi-nor: Fix some error codes in cqspi_setup_flash()
  mtd: spi-nor: Off by one in cqspi_setup_flash()
  PM / devfreq: Fix the bug of devfreq_add_device when governor is NULL
  PM / devfreq: exynos-bus: Fix the wrong return value
  scsi: mpt3sas: fix hang on ata passthrough commands
  scsi: ses: Fix SAS device detection in enclosure
  swiotlb: Add swiotlb=noforce debug option
  swiotlb: Convert swiotlb_force from int to enum
  arm64: Fix swiotlb fallback allocation
  arm64: mm: avoid name clash in __page_to_voff()
  xprtrdma: Squelch "max send, max recv" messages at connect time
  xprtrdma: Make FRWR send queue entry accounting more accurate
  libceph: make sure ceph_aes_crypt() IV is aligned
  ceph: fix endianness bug in frag_tree_split_cmp
  ceph: fix endianness of getattr mask in ceph_d_revalidate
  ceph: fix ceph_get_caps() interruption
  ceph: fix scheduler warning due to nested blocking
  ARM: 8613/1: Fix the uaccess crash on PB11MPCore
  ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
  ARM: dts: omap3: Fix Card Detect and Write Protect on Logic PD SOM-LV
  ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init
  ARM: dts: omap2: Add an empty chosen node to top level DTSI
  ARM: dts: omap3: Add an empty chosen node to top level DTSI
  ARM: dts: am4372: Add an empty chosen node to top level DTSI
  ARM: dts: omap5: Add an empty chosen node to top level DTSI
  ARM: dts: omap4: Add an empty chosen node to top level DTSI
  ARM: dts: am33xx: Add an empty chosen node to top level DTSI
  ARM: dts: dm814x: Add an empty chosen node to top level DTSI
  ARM: dts: dm816x: Add an empty chosen node to top level DTSI
  ARM: dts: dra7: Add an empty chosen node to top level DTSI
  libceph: remove now unused ceph_*{en,de}crypt*() functions
  libceph: switch ceph_x_decrypt() to ceph_crypt()
  libceph: switch ceph_x_encrypt() to ceph_crypt()
  libceph: tweak calcu_signature() a little
  libceph: rename and align ceph_x_authorizer::reply_buf
  libceph: introduce ceph_crypt() for in-place en/decryption
  libceph: introduce ceph_x_encrypt_offset()
  libceph: old_key in process_one_ticket() is redundant
  libceph: ceph_x_encrypt_buflen() takes in_len
  Input: ALPS - fix TrackStick support for SS5 hardware
  arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
  arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
  arm64/ptrace: Preserve previous registers for short regset write - 3
  arm64/ptrace: Preserve previous registers for short regset write - 2
  arm64/ptrace: Preserve previous registers for short regset write
  arm64: avoid returning from bad_mode
  ARM: dts: da850-evm: fix read access to SPI flash
  ARM: dts: OMAP5 / DRA7: indicate that SATA port 0 is available.
  ceph: fix bad endianness handling in parse_reply_info_extra
  ibmvscsis: Fix max transfer length
  ibmvscsis: Fix sleeping in interrupt context
  ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs
  svcrdma: avoid duplicate dma unmapping during error recovery
  clocksource/exynos_mct: Clear interrupt when cpu is shut down
  ubifs: Fix journal replay wrt. xattr nodes
  mac80211: implement multicast forwarding on fast-RX path
  qla2xxx: Fix crash due to null pointer access
  x86/ioapic: Restore IO-APIC irq_chip retrigger callback
  powerpc: Ignore reserved field in DCSR and PVR reads and writes
  powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
  powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
  powerpc/perf: Fix PM_BRU_CMPL event code for power9
  powerpc/icp-opal: Fix missing KVM case and harden replay
  KVM: arm/arm64: vgic: Fix deadlock on error handling
  KVM: s390: do not expose random data via facility bitmap
  mtd: nand: xway: fix build because of module functions
  mtd: nand: xway: disable module support
  mtd: nand: lpc32xx: fix invalid error handling of a requested irq
  ieee802154: atusb: do not use the stack for buffers to make them DMA able
  mmc: mxs-mmc: Fix additional cycles after transmission stop
  mmc: sdhci-acpi: Only powered up enabled acpi child devices
  HID: corsair: fix control-transfer error handling
  HID: corsair: fix DMA buffers on stack
  PCI: Enumerate switches below PCI-to-PCIe bridges
  PCI: designware: Check for iATU unroll only on platforms that use ATU
  fuse: fix time_to_jiffies nsec sanity check
  fuse: clear FR_PENDING flag when moving requests out of pending queue
  ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
  libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
  svcrpc: don't leak contexts on PROC_DESTROY
  sunrpc: don't call sleeping functions from the notifier block callbacks
  rcu: Narrow early boot window of illegal synchronous grace periods
  rcu: Remove cond_resched() from Tiny synchronize_sched()
  x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
  tmpfs: clear S_ISGID when setting posix ACLs
  ARM: dts: omap3: Add DTS for Logic PD SOM-LV 37xx Dev Kit
  ARM: dts: imx31: fix AVIC base address
  ARM: dts: imx31: move CCM device node to AIPS2 bus devices
  ARM: dts: imx31: fix clock control module interrupts description
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: r8a7794: remove Z clock
  ARM: dts: r8a7794: Use SYSC "always-on" PM Domain for sound
  ARM: dts: bcm283x: fix typo in mailbox address
  perf jit: Enable jitdump support without dwarf
  perf scripting: Avoid leaking the scripting_context variable
  perf callchain: Fixup help/config for no-unwinding
  perf diff: Do not overwrite valid build id
  perf trace: Check if MAP_32BIT is defined (again)
  perf mem: Fix --all-user/--all-kernel options
  perf trace: Use the syscall raw_syscalls:sys_enter timestamp
  IB/IPoIB: Remove can't use GFP_NOIO warning
  IB/mlx4: Check if GRH is available before using it
  IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs
  IB/mlx4: Fix port query for 56Gb Ethernet links
  IB/mlx4: Handle well-known-gid in mad_demux processing
  IB/mlx4: Fix out-of-range array index in destroy qp flow
  IB/mlx4: Set traffic class in AH
  IB/mlx5: Wait for all async command completions to complete
  IB/mlx5: Assign SRQ type earlier
  IB/mlx5: Fix reported max SGE calculation
  IB/mlx5: Avoid system crash when enabling many VFs
  IB/rxe: avoid putting a large struct rxe_qp on stack
  IB/rxe: Increase max number of completions to 32k
  IB/core: Release allocated memory in cache setup failure
  Linux 4.9.5
  ANDROID: usb: gadget: f_audio_source: Fixed USB Audio Class Interface Descriptor
  ANDROID: usb: gadget: f_audio_source: change max ISO packet size
  ANDROID: usb: gadget: f_accessory: Enabled Zero Length Packet (ZLP) for acc_write
  ANDROID: drivers: usb: gadget: 64-bit related type fixes
  ANDROID: usb: gadget: f_accessory: move userspace interface to uapi
  ANDROID: usb: gadget: f_mtp: move userspace interface to uapi
  ANDROID: USB: remove duplicate out endpoint creation in MTP mode
  ANDROID: usb: gadget: Fix android gadget driver build
  ANDROID: usb: gadget: Fixes and hacks to make android usb gadget compile on 3.8
  ANDROID: usb: otg: otg-wakelock: Fix build for 3.7
  ANDROID: usb: gadget: accessory: Fix section mismatch (again)
  ANDROID: USB: gadget: f_audio_source: New gadget driver for audio output
  ANDROID: USB: gadget: f_accessory: Add support for HID input devices
  ANDROID: USB: gadget: Add ACCESSORY_SET_AUDIO_MODE control request and ioctl
  ANDROID: usb: gadget: accessory: Fix section mismatch
  ANDROID: usb: otg: otg-wakelock: Fix build for 3.4
  ANDROID: usb: gadget: adb: Only enable the gadget when adbd is ready
  ANDROID: usb: gadget: adb: do not set error flag when dequeuing req
  ANDROID: usb: gadget: adb: allow freezing in adb_read
  ANDROID: usb: gadget: accessory: Add Android Accessory function
  ANDROID: usb: gadget: adb: Add ADB function
  ANDROID: usb: gadget: mtp: Add MTP/PTP function
  ANDROID: usb: otg: otg-wakelock: fix build for 3.3
  ANDROID: usb: otg: Temporarily grab wakelock on charger and disconnect events
  ANDROID: USB: OTG: Take wakelock when VBUS present
  ANDROID: wlan: Add get_wake_irq functionality
  ANDROID: Add flags parameter to get_country_code template
  ANDROID: net: wireless: Add get_country_code functionality to platform
  ANDROID: network: wireless: Add get_mac_addr functionality to platform
  ANDROID: wlan: Create generic wlan platform data header
  ANDROID: net: wireless: Decrease scan entry expiration to avoid stall results
  ANDROID: bridge: Have tx_bytes count headers like rx_bytes.
  ANDROID: rfkill: Introduce CONFIG_RFKILL_PM and use instead of CONFIG_PM to power down
  ANDROID: net: ipv6: fix virtual tunneling build
  ANDROID: tcp: fix tcp_default_init_rwnd() for 4.1
  ANDROID: net: support marking accepting TCP sockets
  ANDROID: tcp: add a sysctl to config the tcp_default_init_rwnd
  ANDROID: xt_qtaguid: fix a race condition in if_tag_stat_update
  ANDROID: netfilter: xt_qtaguid/socket: build fixes for 4.4
  ANDROID: netfilter: xt_qtaguid: xt_socket: build fixes
  ANDROID: net: xt_qtaguid/xt_socket: fix refcount underflow and crash
  ANDROID: xt_qtaguid: use sock_gen_put() instead of xt_socket_put_sk()
  ANDROID: xt_qtaguid: Use sk_callback_lock read locks before reading sk->sk_socket
  ANDROID: xt_qtaguid: fix broken uid/gid range check
  ANDROID: netfilter: Build fixups - kuid/kguid changes & xt_socket_get/put_sk
  ANDROID: net: ipv6: autoconf routes into per-device tables
  ANDROID: nf: IDLETIMER: Fix broken uid field in the msg
  ANDROID: nf: IDLETIMER: Adds the uid field in the msg
  ANDROID: netfilter: fix seq_printf type mismatch warning
  ANDROID: nf: Remove compilation error caused by e8430cbed3ef15fdb1ac26cfd020e010aa5f1c35
  ANDROID: nf: IDLETIMER: time-stamp and suspend/resume handling.
  ANDROID: xt_qtaguid: Fix boot panic
  ANDROID: net: kuid/kguid build fixes
  ANDROID: netfilter: ipv6: fix crash caused by ipv6_find_hdr()
  ANDROID: netfilter: xt_qtaguid: 64-bit warning fixes
  ANDROID: netfilter: xt_qtaguid: fix memory leak in seq_file handlers
  ANDROID: netfilter: xt_qtaguid: fix bad tcp_time_wait sock handling
  ANDROID: netfilter: xt_qtaguid: 3.10 fixes
  ANDROID: netfilter: xt_quota2: 3.10 fixes.
  ANDROID: netfilter: qtaguid: rate limit some of the printks
  ANDROID: netfilter: xt_qtaguid: Allow tracking loopback
  ANDROID: netfilter: xt_qtaguid: extend iface stat to report protocols
  ANDROID: netfilter: xt_qtaguid: remove AID_* dependency for access control
  ANDROID: netfilter: qtaguid: Don't BUG_ON if create_if_tag_stat fails
  ANDROID: netfilter: xt_qtaguid: fix error exit that would keep a spinlock.
  ANDROID: netfilter: xt_qtaguid: report only uid tags to non-privileged processes
  ANDROID: netfilter: xt_qtaguid: start tracking iface rx/tx at low level
  ANDROID: netfilter: xt_IDLETIMER: Add new netlink msg type
  ANDROID: netfilter: xt_qtaguid: fix ipv6 protocol lookup
  ANDROID: netfilter: qtaguid: initialize a local var to keep compiler happy.
  ANDROID: netfilter: fixup the quota2, and enable.
  ANDROID: netfilter: adding the original quota2 from xtables-addons
  ANDROID: netfilter: add xt_qtaguid matching module
  ANDROID: net: PPPoPNS and PPPoLAC build fixes for 4.4
  ANDROID: Hack: net: PPPoPNS and PPPoLAC build fixes for 4.1
  ANDROID: net: pppopns: pppolac: fix sendmsg function calls
  ANDROID: net: PPPoPNS: Remove length argument from data_ready
  ANDROID: net: move PPPoLAC and PPPoPNS headers to uapi
  ANDROID: Include if_pppolac.h and if_pppopns.h into header-y target
  ANDROID: net: PPPoPNS and PPPoLAC update to use PPP_MRU instead of PPP_MRU
  ANDROID: net: Reorder incoming packets in PPPoLAC and PPPoPNS.
  ANDROID: net: PPPoPNS and PPPoLAC fixes.
  ANDROID: net: add PPP on PPTP Network Server (PPPoPNS) driver.
  ANDROID: net: add PPP on L2TP Access Concentrator (PPPoLAC) driver.
  ANDROID: sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size
  ANDROID: net: Only NET_ADMIN is allowed to fully control TUN interfaces.
  ANDROID: net: Replace AID_NET_RAW checks with capable(CAP_NET_RAW).
  ANDROID: security: Add AID_NET_RAW and AID_NET_ADMIN capability check in cap_capable().
  ANDROID: Paranoid network.
  ANDROID: Add android_aid.h
  ANDROID: fs: block_dump: Don't display inode changes if block_dump < 2
  ANDROID: mmc: core: Remove stray CONFIG_EXPERIMENTAL dependencies
  ANDROID: mmc: Add "ignore mmc pm notify" functionality
  ANDROID: mmc: sdio: Fix sdio_reset_comm for sync
  ANDROID: mmc: sdio: fix sdio_reset_comm() voltage selection
  ANDROID: mmc: sdio: Fix enable_hs and enable_wide in sdio_reset_comm()
  ANDROID: mmc: sdio: Add high speed support to sdio_reset_comm()
  ANDROID: mmc: sdio: Claim host in sdio_reset_comm()
  ANDROID: mmc: Add new API call 'sdio_reset_comm' for resetting communication with an SDIO device
  ANDROID: mmc: Add sdio_readb_ext() function
  ANDROID: mmc: Add concept of an 'embedded' SDIO device.
  ANDROID: mmc: sd: Add retries in re-detection
  ANDROID: mmc: sd: When resuming, try a little harder to init the card
  ANDROID: mmc: sd: Add new CONFIG_MMC_PARANOID_SD_INIT for enabling retries during SD detection
  ANDROID: mtd: nand: Allow NAND chip ids to be included standalone.
  ANDROID: gpio_input: convert from wakelocks to wakeup sources
  ANDROID: input: Made keyreset more robust
  ANDROID: input: Changed keyreset to act as a wrapper for keycombo.
  ANDROID: input: add keycombo, a general key combo driver.
  ANDROID: input: misc: keychord: move header to uapi
  ANDROID: input: misc: keychord: log when keychord triggered
  ANDROID: input: keychord: Add keychord driver
  ANDROID: input: Add keyreset driver.
  ANDROID: input: misc: gpio_event: remove early suspend
  ANDROID: Input: Generic GPIO Input device.
  ANDROID: lowmemorykiller: use module_param_cb instead of __module_param_call
  ANDROID: lowmemorykiller: trace kill events.
  ANDROID: staging: lowmemorykiller: Add config option to support oom_adj values
  pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE
  arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags
  arm64: hugetlb: remove the wrong pmd check in find_num_contig()
  arm64: hugetlb: fix the wrong address for several functions
  powerpc/powernv: Don't warn on PE init if unfreeze is unsupported
  powerpc/ibmebus: Fix device reference leaks in sysfs interface
  powerpc/ibmebus: Fix further device reference leaks
  powerpc/mm: Correct process and partition table max size
  bus: vexpress-config: fix device reference leak
  blk-mq: Always schedule hctx->next_cpu
  power: supply: bq27xxx_battery: Fix register map for BQ27510 and BQ27520
  bq24190_charger: Fix PM runtime use for bq24190_battery_set_property
  iw_cxgb4: Fix error return code in c4iw_rdev_open()
  powercap/intel_rapl: fix and tidy up error handling
  ACPI / APEI: Fix NMI notification handling
  block: cfq_cpd_alloc() should use @gfp
  block: Change extern inline to static inline
  ACPI / CPPC: set an error code on probe error path
  regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap
  cpufreq: powernv: Disable preemption while checking CPU throttling state
  powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format
  remoteproc: st: Fix error return code in st_rproc_probe()
  remoteproc: qcom_wcnss: Fix circular module dependency
  drm: Initialise drm_mm.head_node.allocated
  drm/i915: Move the min_pixclk[] handling to the end of readout
  drm/panel: simple: Check against num_timings when setting preferred for timing
  drm: avoid uninitialized timestamp use in wait_vblank
  drm/i915/gen9: Fix PCODE polling during SAGV disabling
  i2c: mux: pca954x: fix i2c mux selection caching
  NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success.
  NFS: Fix a performance regression in readdir
  pNFS: Fix race in pnfs_wait_on_layoutreturn
  NFS: fix typo in parameter description
  pinctrl: meson: fix gpio request disabling other modes
  btrfs: fix error handling when run_delayed_extent_op fails
  btrfs: fix locking when we put back a delayed ref that's too new
  nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
  x86/cpu: Fix bootup crashes by sanitizing the argument of the 'clearcpuid=' command-line option
  i2c: piix4: Avoid race conditions with IMC
  net/mlx5: Only cancel recovery work when cleaning up device
  USB: serial: ch341: fix modem-control and B0 handling
  drm/amdgpu: drop verde dpm quirks
  drm/amdgpu: update si kicker smc firmware
  drm/radeon: drop verde dpm quirks
  drm/radeon: update smc firmware selection for SI
  drm: Clean up planes in atomic commit helper failure path
  drm/i915/gen9: Fix PCODE polling timeout in stable backport
  net/af_iucv: don't use paged skbs for TX on HiperSockets
  sysctl: Drop reference added by grab_header in proc_sys_readdir
  Clearing FIFOs in RS485 emulation mode causes subsequent transmits to break
  extcon: return error code on failure
  sysrq: attach sysrq handler correctly for 32-bit kernel
  orinoco: Use shash instead of ahash for MIC calculations
  ibmvscsis: Fix srp_transfer_data fail return code
  tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx
  tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done
  virtio_blk: avoid DMA to stack for the sense buffer
  dmaengine: omap-dma: Fix dynamic lch_map allocation
  drivers: char: mem: Fix thinkos in kmem address checks
  mnt: Protect the mountpoint hashtable with mount_lock
  pid: fix lockdep deadlock warning due to ucount_lock
  vme: Fix wrong pointer utilization in ca91cx42_slave_get
  Revert "tty: serial: 8250: add CON_CONSDEV to flags"
  ASoC: hdmi-codec: use unsigned type to structure members with bit-field
  btrfs: fix crash when tracepoint arguments are freed by wq callbacks
  xhci: fix deadlock at host remove by running watchdog correctly
  fix a fencepost error in pipe_advance()
  i2c: fix kernel memory disclosure in dev interface
  i2c: print correct device invalid address
  Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
  USB: serial: ch341: fix open and resume after B0
  USB: serial: ch341: fix control-message error handling
  USB: serial: ch341: fix open error handling
  USB: serial: ch341: fix resume after reset
  USB: serial: ch341: fix initial modem-control state
  USB: serial: kl5kusb105: fix line-state error handling
  usb: musb: fix runtime PM in debugfs
  wusbcore: Fix one more crypto-on-the-stack bug
  x86/CPU/AMD: Fix Bulldozer topology
  x86/bugs: Separate AMD E400 erratum and C1E bug
  x86/cpu/AMD: Clean up cpu_llc_id assignment per topology feature
  bridge: netfilter: Fix dropping packets that moving through bridge interface
  xfs: Timely free truncated dirty pages
  gpio: Move freeing of GPIO hogs before numbing of the device
  nl80211: fix sched scan netlink socket owner destruction
  x86/efi: Don't allocate memmap through memblock after mm_init()
  efi/x86: Prune invalid memory map entries and fix boot regression
  efi/libstub/arm*: Pass latest memory map to the kernel
  KVM: x86: Introduce segmented_write_std
  KVM: x86: emulate FXSAVE and FXRSTOR
  KVM: x86: add asm_safe wrapper
  KVM: x86: add Align16 instruction flag
  KVM: x86: fix NULL deref in vcpu_scan_ioapic
  KVM: x86: flush pending lapic jump label updates on module unload
  jump_labels: API for flushing deferred jump label updates
  KVM: eventfd: fix NULL deref irqbypass consumer
  KVM: x86: fix emulation of "MOV SS, null selector"
  mm/hugetlb.c: fix reservation race when freeing surplus pages
  mm/slab.c: fix SLAB freelist randomization duplicate entries
  mm: support anonymous stable page
  mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
  ocfs2: fix crash caused by stale lvb with fsdlm plugin
  mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}
  mm: pmd dirty emulation in page fault handler
  dax: fix deadlock with DAX 4k holes
  zram: support BDI_CAP_STABLE_WRITES
  zram: revalidate disk under init_lock
  selftests: do not require bash for the generated test
  selftests: do not require bash to run netsocktests testcase
  drm/savage: dereferencing an error pointer
  drm/vc4: Fix a couple error codes in vc4_cl_lookup_bos()
  drm/tegra: dpaux: Fix error handling
  regulator: axp20x: Fix axp809 ldo_io registration error on cold boot
  regulator: tps65086: Fix 25mV ranges for BUCK regulators
  pinctrl: sh-pfc: Add helper to handle bias lookup table
  pinctrl: sh-pfc: r8a7795: Use lookup function for bias data
  pinctrl: imx: fix imx_pinctrl_desc initialization
  Input: i8042 - add Pegatron touchpad to noloop table
  Input: xpad - use correct product id for x360w controllers
  Linux 4.9.4
  rtlwifi: rtl_usb: Fix missing entry in USB driver's private data
  rtlwifi: Fix enter/exit power_save
  drm/i915/gen9: Fix PCODE polling during CDCLK change notification
  ALSA: usb-audio: Add a quirk for Plantronics BT600
  spi: mvebu: fix baudrate calculation for armada variant
  ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
  ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration
  ARM: OMAP4+: Fix bad fallthrough for cpuidle
  ARM: OMAP5: Fix build for PM code
  ARM: OMAP5: Fix mpuss_early_init
  bus: arm-ccn: Prevent hotplug callback leak
  svcrdma: Clear xpt_bc_xps in xprt_setup_rdma_bc() error exit arm
  ARM: qcom_defconfig: Fix MDM9515 LCC and GCC config
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ARM: pxa: fix pxa25x interrupt init
  ARM64: dts: bcm2835: Fix bcm2837 compatible string
  ARM64: dts: bcm2837-rpi-3-b: remove incorrect pwr LED
  arm64: dts: mt8173: Fix auxadc node
  tools/virtio: fix READ_ONCE()
  powerpc: Fix build warning on 32-bit PPC
  ALSA: firewire-tascam: Fix to handle error from initialization of stream data
  HID: hid-cypress: validate length of report
  net: vrf: do not allow table id 0
  net: ipv4: Fix multipath selection with vrf
  net/mlx5e: Remove WARN_ONCE from adaptive moderation code
  gro: Disable frag0 optimization on IPv6 ext headers
  gro: use min_t() in skb_gro_reset_offset()
  gro: Enter slow-path if there is no tailroom
  net: add the AF_QIPCRTR entries to family name tables
  net: dsa: Ensure validity of dst->ds[0]
  r8152: fix rx issue for runtime suspend
  r8152: split rtl8152_suspend function
  net: dsa: bcm_sf2: Utilize nested MDIO read/write
  net: dsa: bcm_sf2: Do not clobber b53_switch_ops
  bpf: change back to orig prog on too many passes
  net: vrf: Add missing Rx counters
  ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
  igmp: Make igmp group member RFC 3376 compliant
  flow_dissector: Update pptp handling to avoid null pointer deref.
  drop_monitor: consider inserted data in genlmsg_end
  drop_monitor: add missing call to genlmsg_end
  net: ipv4: dst for local input routes should use l3mdev if relevant
  net: fix incorrect original ingress device index in PKTINFO
  rtnl: stats - add missing netlink message size checks
  net/mlx5e: Disable netdev after close
  net/mlx5e: Don't sync netdev state when not registered
  net/mlx5: Prevent setting multicast macs for VFs
  net/mlx5: Mask destination mac value in ethtool steering rules
  net/mlx5: Avoid shadowing numa_node
  net/mlx5: Cancel recovery work in remove flow
  net/mlx5: Check FW limitations on log_max_qp before setting it
  net/sched: cls_flower: Fix missing addr_type in classify
  net: stmmac: Fix race between stmmac_drv_probe and stmmac_open
  net, sched: fix soft lockup in tc_classify
  ipv6: handle -EFAULT from skb_copy_bits
  inet: fix IP(V6)_RECVORIGDSTADDR for udp sockets
  sctp: sctp_transport_lookup_process should rcu_read_unlock when transport is null
  net: vrf: Drop conntrack data after pass through VRF device on Tx
  net: vrf: Fix NAT within a VRF
  Linux 4.9.3
  usb: gadget: composite: always set ep->mult to a sensible value
  Revert "usb: gadget: composite: always set ep->mult to a sensible value"
  Revert "rtlwifi: Fix enter/exit power_save"
  tick/broadcast: Prevent NULL pointer dereference
  clocksource/dummy_timer: Move hotplug callback after the real timers
  xfs: fix max_retries _show and _store functions
  xfs: fix crash and data corruption due to removal of busy COW extents
  xfs: use the actual AG length when reserving blocks
  xfs: fix double-cleanup when CUI recovery fails
  xfs: use GPF_NOFS when allocating btree cursors
  xfs: ignore leaf attr ichdr.count in verifier during log replay
  xfs: don't cap maximum dedupe request length
  xfs: don't allow di_size with high bit set
  xfs: error out if trying to add attrs and anextents > 0
  xfs: don't crash if reading a directory results in an unexpected hole
  xfs: complain if we don't get nextents bmap records
  xfs: check for bogus values in btree block headers
  xfs: forbid AG btrees with level == 0
  xfs: handle cow fork in xfs_bmap_trace_exlist
  xfs: pass state not whichfork to trace_xfs_extlist
  xfs: Move AGI buffer type setting to xfs_read_agi
  xfs: pass post-eof speculative prealloc blocks to bmapi
  xfs: use new extent lookup helpers xfs_file_iomap_begin_delay
  xfs: clean up cow fork reservation and tag inodes correctly
  xfs: use new extent lookup helpers in __xfs_reflink_reserve_cow
  xfs: track preallocation separately in xfs_bmapi_reserve_delalloc()
  xfs: remove prev argument to xfs_bmapi_reserve_delalloc
  xfs: always succeed when deduping zero bytes
  xfs: factor rmap btree size into the indlen calculations
  xfs: new inode extent list lookup helpers
  xfs: fix unbalanced inode reclaim flush locking
  xfs: check minimum block size for CRC filesystems
  xfs: provide helper for counting extents from if_bytes
  xfs: don't BUG() on mixed direct and mapped I/O
  xfs: don't skip cow forks w/ delalloc blocks in cowblocks scan
  xfs: check return value of _trans_reserve_quota_nblks
  xfs: don't call xfs_sb_quota_from_disk twice
  tpm_tis: Check return values from get_burstcount.
  drm/i915/gen9: fix the WM memory bandwidth WA for Y tiling cases
  drm/i915/gen9: unconditionally apply the memory bandwidth WA
  drm/i915: disable PSR by default on HSW/BDW
  drm/radeon: Always store CRTC relative radeon_crtc->cursor_x/y values
  s390/pci: fix dma address calculation in map_sg
  s390/topology: always use s390 specific sched_domain_topology_level
  powerpc/pci/rpadlpar: Fix device reference leaks
  PCI: Enable access to non-standard VPD for Chelsio devices (cxgb3)
  PCI: Support INTx masking on ConnectX-4 with firmware x.14.1100+
  PCI: Convert Mellanox broken INTx quirks to be for listed devices only
  PCI: Convert broken INTx masking quirks from HEADER to FINAL
  PCI: Add Mellanox device IDs
  PCI: rockchip: Correct the use of FTS mask
  PCI: rockchip: Fix negotiated lanes calculation
  staging: media: davinci_vpfe: unlock on error in vpfe_reqbufs()
  f2fs: hide a maybe-uninitialized warning
  f2fs: remove percpu_count due to performance regression
  md: fix refcount problem on mddev when stopping array.
  md: MD_RECOVERY_NEEDED is set for mddev->recovery
  crypto: arm64/aes-ce - fix for big endian
  crypto: arm64/aes-xts-ce: fix for big endian
  crypto: arm64/sha1-ce - fix for big endian
  crypto: arm64/aes-neon - fix for big endian
  crypto: arm64/aes-ccm-ce: fix for big endian
  crypto: arm/aes-ce - fix for big endian
  crypto: arm64/ghash-ce - fix for big endian
  crypto: arm64/sha2-ce - fix for big endian
  s390/crypto: unlock on error in prng_tdes_read()
  mm, compaction: fix NR_ISOLATED_* stats for pfn based migration
  mm: khugepaged: fix radix tree node leak in shmem collapse error path
  mm: khugepaged: close use-after-free race during shmem collapsing
  docs-rst: fix LaTeX \DURole renewcommand with Sphinx 1.3+
  mm/hugetlb.c: use the right pte val for compare in hugetlb_cow
  rpmsg: qcom_smd: Correct return value for O_NONBLOCK
  mmc: mmc_test: Uninitialized return value
  genirq/affinity: Fix node generation from cpumask
  PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend
  irqchip/bcm7038-l1: Implement irq_cpu_offline() callback
  PCI/MSI: Check for NULL affinity mask in pci_irq_get_affinity()
  ima: fix memory leak in ima_release_policy
  relay: check array offset before using it
  sbp-target: Fix second argument of percpu_ida_alloc()
  target/iscsi: Fix double free in lio_target_tiqn_addtpg()
  scsi: mvsas: fix command_active typo
  scsi: g_NCR5380: Fix release_region in error handling
  ASoC: samsung: i2s: Fixup last IRQ unsafe spin lock call
  ASoC: Intel: Skylake: Fix a shift wrapping bug
  ASoC: cht_bsw_rt5645: Fix leftover kmalloc
  ASoC: lpass-platform: initialize dma channel number
  iommu/vt-d: Flush old iommu caches for kdump when the device gets context mapped
  iommu/vt-d: Fix pasid table size encoding
  iommu/amd: Fix the left value check of cmd buffer
  iommu/amd: Missing error code in amd_iommu_init_device()
  clk: renesas: mstp: Support 8-bit registers for r7s72100
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  clk: sunxi-ng: sun8i-h3: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: sunxi-ng: sun8i-a23: Set CLK_SET_RATE_PARENT for audio module clocks
  clk: ti: dra7: fix "failed to lookup clock node gmac_gmii_ref_clk_div" boot message
  clk: clk-wm831x: fix a logic error
  clk: qcom: ipq806x: Fix board clk rates
  Input: synaptics-rmi4 - unlock on error
  hwmon: (lm90) fix temp1_max_alarm attribute
  hwmon: (g762) Fix overflows and crash seen when writing limit attributes
  hwmon: (nct7802) Fix overflows seen when writing into limit attributes
  hwmon: (ds620) Fix overflows seen when writing temperature limits
  hwmon: (amc6821) sign extension temperature
  hwmon: (scpi) Fix module autoload
  platform/x86: fujitsu-laptop: use brightness_set_blocking for LED-setting callbacks
  x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6
  x86/prctl/uapi: Remove #ifdef for CHECKPOINT_RESTORE
  debugfs: improve DEFINE_DEBUGFS_ATTRIBUTE for !CONFIG_DEBUG_FS
  clk: renesas: cpg-mssr: Fix inverted debug check
  efi/efivar_ssdt_load: Don't return success on allocation failure
  cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected
  ath10k: use the right length of "background"
  mfd: tps65217: Fix page fault on unloading modules
  ath10k: fix failure to send NULL func frame for 10.4
  nl80211: Use different attrs for BSSID and random MAC addr in scan req
  mac80211: fix tid_agg_rx NULL dereference
  drm/i915: tune down the fast link training vs boot fail
  drm/i915/dp: add lane_count check in intel_dp_check_link_status
  usb: dwc3: gadget: always unmap EP0 requests
  usb: dwc3: ep0: explicitly call dwc3_ep0_prepare_one_trb()
  usb: dwc3: ep0: add dwc3_ep0_prepare_one_trb()
  iio: accel: st_accel: fix LIS3LV02 reading and scaling
  staging: iio: ad7606: fix improper setting of oversampling pins
  mei: move write cb to completion on credentials failures
  mei: bus: fix mei_cldev_enable KDoc
  mei: fix parameter rename KDoc
  USB: serial: io_ti: bind to interface after fw download
  dibusb: fix possible memory leak in dibusb_rc_query()
  ARM: dts: sun7i: bananapi-m1-plus: Enable USB PHY for USB host support
  arm64: dts: hip06: Correct hardware pin number of usb node
  USB: phy: am335x-control: fix device and of_node leaks
  ARM: dts: r8a7794: Correct hsusb parent clock
  usb: gadget: fix request length error for isoc transfer
  usb: gadget: Fix second argument of percpu_ida_alloc()
  USB: serial: kl5kusb105: abort on open exception path
  ALSA: usb-audio: Fix bogus error return in snd_usb_create_stream()
  usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
  usb: gadget: udc: core: fix return code of usb_gadget_probe_driver()
  usb: hub: Move hub_port_disable() to fix warning if PM is disabled
  usb: musb: Fix trying to free already-free IRQ 4
  usb: dwc3: gadget: Fix full speed mode
  usb: dwc3: pci: Fix dr_mode misspelling
  usb: dwc3: pci: add Intel Gemini Lake PCI ID
  xhci: Fix race related to abort operation
  xhci: Use delayed_work instead of timer for command timeout
  usb: xhci-mem: use passed in GFP flags instead of GFP_KERNEL
  USB: serial: mos7720: fix parallel probe
  USB: serial: mos7720: fix parport use-after-free on probe errors
  USB: serial: mos7720: fix use-after-free on probe errors
  USB: serial: mos7720: fix NULL-deref at open
  USB: serial: mos7840: fix NULL-deref at open
  USB: serial: kobil_sct: fix NULL-deref in write
  USB: serial: cyberjack: fix NULL-deref at open
  USB: serial: oti6858: fix NULL-deref at open
  USB: serial: io_edgeport: fix NULL-deref at open
  USB: serial: ti_usb_3410_5052: fix NULL-deref at open
  USB: serial: garmin_gps: fix memory leak on failed URB submit
  USB: serial: iuu_phoenix: fix NULL-deref at open
  USB: serial: io_ti: fix I/O after disconnect
  USB: serial: io_ti: fix another NULL-deref at open
  USB: serial: io_ti: fix NULL-deref at open
  USB: serial: spcp8x5: fix NULL-deref at open
  USB: serial: keyspan_pda: verify endpoints at probe
  USB: serial: pl2303: fix NULL-deref at open
  USB: serial: quatech2: fix sleep-while-atomic in close
  USB: serial: omninet: fix NULL-derefs at open and disconnect
  usb: return error code when platform_get_irq fails
  usb: xhci: hold lock over xhci_abort_cmd_ring()
  xhci: Handle command completion and timeout race
  usb: host: xhci: Fix possible wild pointer when handling abort command
  usb: xhci: fix return value of xhci_setup_device()
  xhci: free xhci virtual devices with leaf nodes first
  usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Apollo Lake
  usb: xhci: fix possible wild pointer
  usb: dwc3: core: avoid Overflow events
  usb: gadget: composite: Test get_alt() presence instead of set_alt()
  USB: dummy-hcd: fix bug in stop_activity (handle ep0)
  USB: fix problems with duplicate endpoint addresses
  USB: gadgetfs: fix checks of wTotalLength in config descriptors
  USB: gadgetfs: fix use-after-free bug
  USB: gadgetfs: fix unbounded memory allocation bug
  usb: gadgetfs: restrict upper bound on device configuration size
  usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
  usb: musb: dsps: implement clear_ep_rxintr() callback
  usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
  KVM: MIPS: Flush KVM entry code from icache globally
  KVM: MIPS: Don't clobber CP0_Status.UX
  KVM: x86: reset MMU on KVM_SET_VCPU_EVENTS
  drm/i915: Initialize overlay->last_flip properly
  drm/i915: Force VDD off on the new power seqeuencer before starting to use it
  drm/i915: Fix oops in overlay due to frontbuffer tracking
  drm/i915: Fix oopses in the overlay code due to i915_gem_active stuff
  gcc-plugins: update gcc-common.h for gcc-7
  asm-prototypes: Clear any CPP defines before declaring the functions
  mac80211: initialize fast-xmit 'info' later
  pinctrl/amd: Set the level based on ACPI tables
  ARM: davinci: da850: don't add emac clock to lookup table twice
  HID: sensor-hub: Move the memset to sensor_hub_get_feature()
  parisc: Mark cr16 clocksource unstable on SMP systems
  parisc: Add line-break when printing segfault info
  fscrypt: fix renaming and linking special files
  ALSA: usb-audio: Fix irq/process data synchronization
  ALSA: hda - Apply asus-mode8 fixup to ASUS X71SL
  ALSA: hda - Fix up GPIO for ASUS ROG Ranger
  staging: octeon: Call SET_NETDEV_DEV()
  iio: bmi160: Fix time needed to sleep after command execution
  iio: max44000: correct value in illuminance_integration_time_available
  iio: common: st_sensors: fix channel data parsing
  Linux 4.9.2
  drm/i915: Fix setting of boost freq tunable
  drm/i915: skip the first 4k of stolen memory on everything >= gen8
  drm/i915: Initialize dev_priv->atomic_cdclk_freq at init time
  drm/i915: Fix cdclk vs. dev_cdclk mess when not recomputing things
  drm/i915/dsi: Do not clear DPOUNIT_CLOCK_GATE_DISABLE from vlv_init_display_clock_gating
  drm/i915/dsi: Fix chv_exec_gpio disabling the GPIOs it is setting
  net: mvpp2: fix dma unmapping of TX buffers for fragments
  sg_write()/bsg_write() is not fit to be called under KERNEL_DS
  kconfig/nconf: Fix hang when editing symbol with a long prompt
  target/user: Fix use-after-free of tcmu_cmds if they are expired
  libnvdimm, pfn: fix align attribute
  of, numa: Return NUMA_NO_NODE from disable of_node_to_nid() if nid not possible.
  powerpc/boot: Request no dynamic linker for boot wrapper
  powerpc/ps3: Fix system hang with GCC 5 builds
  powerpc/64e: Convert cmpi to cmpwi in head_64.S
  SUNRPC: fix refcounting problems with auth_gss messages.
  pNFS: Fix a deadlock between read resends and layoutreturn
  pNFS: Clear NFS_LAYOUT_RETURN_REQUESTED when invalidating the layout stateid
  pNFS: Don't clear the layout stateid if a layout return is outstanding
  pNFS: On error, do not send LAYOUTGET until the LAYOUTRETURN has completed
  nfs_write_end(): fix handling of short copies
  libceph: verify authorize reply on connect
  PCI: Check for PME in targeted sleep state
  i40iw: Use correct src address in memcpy to rdma stats counters
  bad_inode: add missing i_op initializers
  Input: drv260x - fix input device's parent assignment
  v4l: tvp5150: Add missing break in set control handler
  media: solo6x10: fix lockup by avoiding delayed register write
  s5p-mfc: fix failure path of s5p_mfc_alloc_memdev()
  mn88473: fix chip id check on probe
  mn88472: fix chip id check on probe
  IB/cma: Fix a race condition in iboe_addr_get_sgid()
  IB/rxe: Fix a memory leak in rxe_qp_cleanup()
  IB/multicast: Check ib_find_pkey() return value
  IPoIB: Avoid reading an uninitialized member variable
  IB/mad: Fix an array index check
  fgraph: Handle a case where a tracer ignores set_graph_notrace
  x86/smpboot: Make logical package management more robust
  platform/x86: asus-nb-wmi.c: Add X45U quirk
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it
  vsock/virtio: fix src/dst cid format
  fsnotify: Fix possible use-after-free in inode iteration on umount
  kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF)
  KVM: PPC: Book3S HV: Don't lose hardware R/C bit updates in H_PROTECT
  KVM: PPC: Book3S HV: Save/restore XER in checkpointed register state
  scsi: aacraid: remove wildcard for series 9 controllers
  md/raid5: limit request size according to implementation limits
  sc16is7xx: Drop bogus use of IRQF_ONESHOT
  latent_entropy: fix ARM build error on earlier gcc
  arm64: KVM: pmu: Reset PMSELR_EL0.SEL to a sane value before entering the guest
  s390/kexec: use node 0 when re-adding crash kernel memory
  s390/vmlogrdr: fix IUCV buffer allocation
  firmware: fix usermode helper fallback loading
  ARC: mm: arc700: Don't assume 2 colours for aliasing VIPT dcache
  scsi: avoid a permanent stop of the scsi device's request queue
  scsi: zfcp: fix rport unblock race with LUN recovery
  scsi: zfcp: do not trace pure benign residual HBA responses at default level
  scsi: zfcp: fix use-after-"free" in FC ingress path after TMF
  iscsi-target: Return error if unable to add network portal
  scsi: megaraid_sas: Do not set MPI2_TYPE_CUDA for JBOD FP path for FW which does not support JBOD sequence map
  scsi: megaraid_sas: For SRIOV enabled firmware, ensure VF driver waits for 30secs before reset
  stm class: Fix device leak in open error path
  vt: fix Scroll Lock LED trigger name
  block: protect iterate_bdevs() against concurrent close
  mei: me: add lewisburg device ids
  mei: request async autosuspend at the end of enumeration
  drivers/gpu/drm/ast: Fix infinite loop if read fails
  drm/amdgpu: fix init save/restore list in gfx_v8.0
  drm/amdgpu: fix enable_cp_power_gating in gfx_v8.0.
  drm/amd/powerplay: bypass fan table setup if no fan connected
  drm/gma500: Add compat ioctl
  drm/radeon/si: load the proper firmware on 0x87 oland boards
  drm/radeon: add additional pci revision to dpm workaround
  drm/radeon: Hide the HW cursor while it's out of bounds
  drm/radeon: Also call cursor_move_locked when the cursor size changes
  drm/nouveau/fifo/gf100-: protect channel preempt with subdev mutex
  drm/nouveau/i2c/gk110b,gm10x: use the correct implementation
  drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
  drm/nouveau/ltc: protect clearing of comptags with mutex
  drm/nouveau/bios: require checksum to match for fast acpi shadow method
  drm/nouveau/kms: lvds panel strap moved again on maxwell
  drm/nouveau/gr: fallback to legacy paths during firmware lookup
  drm/amd/amdgpu: enable GUI idle INT after enabling CGCG
  drm/amdgpu: Also call cursor_move_locked when the cursor size changes
  drm/amdgpu: Store CRTC relative amdgpu_crtc->cursor_x/y values
  drm/amdgpu: add additional pci revision to dpm workaround
  drm/amdgpu/si: load the proper firmware on 0x87 oland boards
  ACPI / video: Add force_native quirk for HP Pavilion dv6
  ACPI / video: Add force_native quirk for Dell XPS 17 L702X
  staging: comedi: ni_mio_common: fix E series ni_ai_insn_read() data
  staging: comedi: ni_mio_common: fix M Series ni_ai_insn_read() data mask
  staging: lustre: ldlm: pl_recalc time handling is wrong
  staging/lustre/osc: Revert erroneous list_for_each_entry_safe use
  hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
  docs: sphinx-extensions: make rstFlatTable work with docutils 0.13
  thermal: hwmon: Properly report critical temperature in sysfs
  clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk
  arm64: tegra: Add VDD_GPU regulator to Jetson TX1
  gpio: chardev: Return error for seek operations
  gpio: stmpe: fix interrupt handling bug
  timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion
  mmc: sd: Meet alignment requirements for raw_ssr DMA
  regulator: stw481x-vmmc: fix ages old enable error
  mmc: sdhci: Fix recovery from tuning timeout
  Revert "mmc: sdhci: Reset cmd and data circuits after tuning failure"
  ath9k: do not return early to fix rcu unlocking
  ath9k: Really fix LED polarity for some Mini PCI AR9220 MB92 cards.
  ath9k: fix ath9k_hw_gpio_get() to return 0 or 1 on success
  cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts
  rtl8xxxu: Work around issue with 8192eu and 8723bu devices not reconnecting
  perf/x86/intel/cstate: Prevent hotplug callback leak
  perf annotate: Don't throw error for zero length symbols
  perf/x86: Fix exclusion of BTS and LBR for Goldmont
  rtlwifi: Fix enter/exit power_save
  ath10k: fix soft lockup during firmware crash/hw-restart
  ssb: Fix error routine when fallback SPROM fails
  Linux 4.9.1
  x86/kbuild: enable modversions for symbols exported from asm
  builddeb: fix cross-building to arm64 producing host-arch debs
  xfs: set AGI buffer type in xlog_recover_clear_agi_bucket
  xfs: fix up xfs_swap_extent_forks inline extent handling
  arm/xen: Use alloc_percpu rather than __alloc_percpu
  xen/gntdev: Use VM_MIXEDMAP instead of VM_IO to avoid NUMA balancing
  tpm xen: Remove bogus tpm_chip_unregister
  kernel/debug/debug_core.c: more properly delay for secondary CPUs
  watchdog: qcom: fix kernel panic due to external abort on non-linefetch
  watchdog: mei_wdt: request stop on reboot to prevent false positive event
  kernel/watchdog: use nmi registers snapshot in hardlockup handler
  CIFS: Fix a possible memory corruption in push locks
  CIFS: Decrease verbosity of ioctl call
  CIFS: Fix a possible double locking of mutex during reconnect
  CIFS: Fix missing nls unload in smb2_reconnect()
  CIFS: Fix a possible memory corruption during reconnect
  cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack
  ASoC: intel: Fix crash at suspend/resume without card registration
  dm space map metadata: fix 'struct sm_metadata' leak on failed create
  dm raid: fix discard support regression
  dm rq: fix a race condition in rq_completed()
  dm crypt: mark key as invalid until properly loaded
  dm flakey: return -EINVAL on interval bounds error in flakey_ctr()
  dm table: an 'all_blk_mq' table must be loaded for a blk-mq DM device
  dm table: fix 'all_blk_mq' inconsistency when an empty table is loaded
  blk-mq: Do not invoke .queue_rq() for a stopped queue
  PM / OPP: Don't use OPP structure outside of rcu protected section
  PM / OPP: Pass opp_table to dev_pm_opp_put_regulator()
  usb: gadget: composite: always set ep->mult to a sensible value
  mm, page_alloc: keep pcp count and list contents in sync if struct page is corrupted
  mm/vmscan.c: set correct defer count for shrinker
  nvmet: Fix possible infinite loop triggered on hot namespace removal
  loop: return proper error from loop_queue_rq()
  f2fs: fix to determine start_cp_addr by sbi->cur_cp_pack
  f2fs: fix overflow due to condition check order
  f2fs: set ->owner for debugfs status file's file_operations
  Revert "f2fs: use percpu_counter for # of dirty pages in inode"
  ext4: do not perform data journaling when data is encrypted
  ext4: return -ENOMEM instead of success
  ext4: reject inodes with negative size
  ext4: add sanity checking to count_overhead()
  ext4: fix in-superblock mount options processing
  ext4: use more strict checks for inodes_per_block on mount
  ext4: fix stack memory corruption with 64k block size
  ext4: fix mballoc breakage with 64k block size
  ext4: don't lock buffer in ext4_commit_super if holding spinlock
  crypto: caam - fix AEAD givenc descriptors
  ptrace: Don't allow accessing an undumpable mm
  ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
  vfs,mm: fix return value of read() at s_maxbytes
  mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
  block_dev: don't test bdev->bd_contains when it is not stable
  splice: reinstate SIGPIPE/EPIPE handling
  fs: exec: apply CLOEXEC before changing dumpable task flags
  exec: Ensure mm->user_ns contains the execed files
  clk: ti: omap36xx: Work around sprz319 advisory 2.1
  ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq
  ALSA: hda - Gate the mic jack on HP Z1 Gen3 AiO
  ALSA: hda - fix headset-mic problem on a Dell laptop
  ALSA: hda - ignore the assoc and seq when comparing pin configurations
  ALSA: hda/ca0132 - Add quirk for Alienware 15 R2 2016
  ALSA: hiface: Fix M2Tech hiFace driver sampling rate change
  ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks
  usbip: vudc: fix: Clear already_seen flag also for ep0
  USB: UHCI: report non-PME wakeup signalling for Intel hardware
  usb: gadget: composite: correctly initialize ep->maxpacket
  usb: gadget: f_uac2: fix error handling at afunc_bind
  usb: core: usbport: Use proper LED API to fix potential crash
  usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices
  usb: dwc3: gadget: set PCM1 field of isochronous-first TRBs
  USB: cdc-acm: add device id for GW Instek AFG-125
  USB: serial: kl5kusb105: fix open error path
  USB: serial: option: add dlink dwm-158
  USB: serial: option: add support for Telit LE922A PIDs 0x1040, 0x1041
  Btrfs: fix qgroup rescan worker initialization
  Btrfs: fix emptiness check for dirtied extent buffers at check_leaf()
  btrfs: store and load values of stripes_min/stripes_max in balance status item
  Btrfs: fix relocation incorrectly dropping data references
  Btrfs: fix tree search logic when replaying directory entry deletes
  Btrfs: fix deadlock caused by fsync when logging directory entries
  Btrfs: fix BUG_ON in btrfs_mark_buffer_dirty
  btrfs: limit async_work allocation and worker func duration
  hotplug: Make register and unregister notifier API symmetric
  ANDROID: Shrink ashmem directly through shmem_fallocate
  ANDROID: ashmem: Add shmem_set_file to mm/shmem.c
  ANDROID: Add android config documentation to boot framework.

Conflicts:
	Documentation/android.txt
	Documentation/cpu-freq/governors.txt
	Documentation/networking/ip-sysctl.txt
	arch/arm64/boot/Makefile
	arch/arm64/kernel/process.c
	arch/arm64/kernel/topology.c
	arch/arm64/mm/dma-mapping.c
	drivers/cpufreq/cpufreq_interactive.c
	drivers/input/misc/gpio_matrix.c
	drivers/md/Kconfig
	drivers/md/dm-android-verity.c
	drivers/md/dm-android-verity.h
	drivers/md/dm-linear.c
	drivers/md/dm-verity-fec.h
	drivers/mmc/core/host.c
	drivers/platform/goldfish/goldfish_pipe.c
	drivers/power/supply/power_supply_sysfs.c
	drivers/scsi/ufs/ufshcd.c
	drivers/scsi/ufs/ufshcd.h
	drivers/staging/android/fiq_debugger/fiq_debugger.c
	drivers/staging/android/lowmemorykiller.c
	drivers/usb/dwc3/core.h
	drivers/usb/gadget/Kconfig
	drivers/usb/gadget/configfs.c
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/function/f_accessory.c
	drivers/usb/gadget/function/f_audio_source.c
	drivers/usb/gadget/function/f_fs.c
	drivers/usb/gadget/function/f_mtp.c
	drivers/usb/phy/Kconfig
	drivers/usb/phy/otg-wakelock.c
	fs/ext4/inode.c
	fs/ext4/ioctl.c
	fs/f2fs/data.c
	fs/proc/task_mmu.c
	fs/sdcardfs/derived_perm.c
	fs/sdcardfs/file.c
	fs/sdcardfs/inode.c
	fs/sdcardfs/lookup.c
	fs/sdcardfs/main.c
	fs/sdcardfs/packagelist.c
	fs/sdcardfs/sdcardfs.h
	fs/sdcardfs/super.c
	include/linux/mmc/core.h
	include/linux/power_supply.h
	include/linux/sched.h
	include/linux/usb/f_mtp.h
	include/net/fib_rules.h
	include/net/route.h
	include/trace/events/cpufreq_interactive.h
	include/trace/events/power.h
	include/trace/events/sched.h
	include/uapi/linux/magic.h
	include/uapi/linux/prctl.h
	init/Kconfig
	kernel/cgroup.c
	kernel/configs/android-base.config
	kernel/power/process.c
	kernel/sched/Makefile
	kernel/sched/core.c
	kernel/sched/cputime.c
	kernel/sched/fair.c
	kernel/sched/rt.c
	kernel/sched/sched.h
	kernel/sched/stop_task.c
	kernel/sched/tune.c
	lib/Kconfig.debug
	net/core/fib_rules.c
	net/ipv4/inet_connection_sock.c
	net/ipv4/ping.c
	net/ipv4/raw.c
	net/ipv4/route.c
	net/ipv4/syncookies.c
	net/ipv4/udp.c
	net/ipv6/af_inet6.c
	net/ipv6/ah6.c
	net/ipv6/datagram.c
	net/ipv6/esp6.c
	net/ipv6/icmp.c
	net/ipv6/inet6_connection_sock.c
	net/ipv6/ip6_vti.c
	net/ipv6/ipcomp6.c
	net/ipv6/ping.c
	net/ipv6/raw.c
	net/ipv6/route.c
	net/ipv6/syncookies.c
	net/ipv6/tcp_ipv6.c
	net/ipv6/udp.c

Change-Id: I82455dc7b564fc5d3ad2b784a0eb8f96c6b05d4c
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
2017-02-17 16:14:38 -08:00
Oleg Nesterov
3479e4d069 Use after free from pid_nr_ns()
There is use after free reported due to group
leader task is already freed but other tasks are
still holding the group leader task address in
task->group_leader pointer.

pid_nr_ns+0x10/0x38
cgroup_pidlist_start+0x144/0x400
cgroup_seqfile_start+0x1c/0x24
kernfs_seq_start+0x54/0x90
seq_read+0x15c/0x3a8
kernfs_fop_read+0x38/0x160
__vfs_read+0x28/0xc8
vfs_read+0x84/0xfc

Change-Id: Ib6b3fc75bf0d24a04455bf81d54900c21c434958
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
2017-02-15 17:40:08 -08:00
Pavankumar Kondeti
6deb2c47d6 sched: maintain group busy time counters in runqueue
There is no advantage of tracking busy time counters per related
thread group. We need busy time across all groups for either a CPU
or a frequency domain. Hence maintain group busy time counters in
the runqueue itself. When CPU window is rolled over, the group busy
counters are also rolled over. This eliminates the overhead of
individual group's window_start maintenance.

As we are preallocating related thread group now, this patch saves
40 * nr_cpu_ids * (nr_grp - 1) bytes memory.

Change-Id: Ieaaccea483b377f54ea1761e6939ee23a78a5e9c
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-02-07 14:56:34 -08:00
Syed Rameez Mustafa
e343972d8e sched: Convert the global wake_up_idle flag to a per cluster flag
Since clusters can vary significantly in the power and performance
characteristics, there may be a need to have different CPU selection
policies based on which cluster a task is being placed on. For example
the placement policy can be more aggressive in using idle CPUs on
cluster that are power efficient and less aggressive on clusters
that are geared towards performance. Add support for per cluster
wake_up_idle flag to allow greater flexibility in placement policies.

Change-Id: I18cd3d907cd965db03a13f4655870dc10c07acfe
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
2017-02-07 14:51:38 -08:00
Srivatsa Vaddagiri
52465c4964 sched: Track average sleep time
Similar to tracking average burst length for tasks, average sleep time
indicates how much a task sleeps on an average before waking up to run.
Very low sleep and burst lengths indicates tasks that could be
sensitive to task-wake latencies and hence should not be packed.

Change-Id: Ife68a9a9a9e596246aab5029f60e41c5bad781e4
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2017-02-07 14:51:31 -08:00